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NLR GAS TURBINE SIMULATION PROGRAM GSP for MS-WINDOWS              RELEASE NOTES

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CONTENTS:

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1. Version history

2. Hints

3. Known issues

4. Other

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1. VERSION HISTORY

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GSP v12.0.1.0                                                         14-04-2022

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First commercial release of GSP 12

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What's new? Highlights (for more details scroll down to the build entries)

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* Embedded SQL based database

* Advanced data output table:

 - Powerful options for filtering and sorting output data

 - Comparing of different case output datasets

 - Parameter grouping per model component

 - Coloring of the output data table background per model component

 - Default colors are already set, user can edit and revert

 -

* Implementation of interface and options to output according to standards

 SAE AS755 (station designation and nomenclature) and SAE ARP5571 (performance

 presentation and nomenclature).

 * Set alternative station string:

   Project window: Options -> Output... -> tab "Output Standards"

 * View in model component layout:

   Project Window:  Options -> General... -> tab "Model", option "Show

   alternative station string in model window"

* The root node that was called Reference model in GSP 11 is now called

 "Base configuration".

 

GSP v12.0.0.12                                                        13-04-2022

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Improvements

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* Corrected massflow for turbomachinery components now always set to Wcgas (not

 Wc) because any liquid fractions must be excluded. (W. Visser, VisserTek)

* Speed of rendering the data table into the graphs has been increased and

 improved. (W. Visser, VisserTek)

 

 GSP v12.0.0.11                                                      07-04-2022

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Improvements

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* Faster renumbering of curves and groups in output table (O. Kogenhop, NLR).

 

New features

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* Export the table output to an Excel file (WYSIWYG, so including component

 output background coloring and column component type grouping) (O. Kogenhop,

 NLR).

 

GSP v12.0.0.10                                                        10-03-2022

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Fixed

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* Problem refreshing carpet and legend field lists fixed. (W. Visser, VisserTek)

* API: problems compatibility with dx and cx controls fixed (cx controls

 initialized explicitly in Initialization section of form units). (W. Visser,

 VisserTek)

 

Improvements

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* GSP 12 API speed; tested to be at least 30 times faster than GSP 11 API

 (O. Kogenhop, NLR).

* Ther term "ReferenceModel" or "Reference Model" as root node for the model

 configurations has been dropped in favor of the naming "Base configuration",

 this is the root node from which all other model configurations and cases in-

 herit (W. Visser, VisserTek / O. Kogenhop, NLR).

 

New features

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* GSP API functions added (O. Kogenhop, NLR).

 

GSP v12.0.0.9                                                         09-02-2022

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Fixed

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* Bugs in initial code for automatic Firebird table recreation when database

 table changes counter approached limit of 255 (W. Visser, VisserTek).

* RNI (Reynolds index number) is calculated on constant axial Mach number

 instead of constant velocity (W. Visser, VisserTek / O. Kogenhop, NLR).

* Component envelope scheduler:

 1) Drawing outside flight graph window fixed.

 2) Power control setup can now be done in case model StSt. series, this used

    to be configurable in design mode only.

 (O. Kogenhop, NLR)

* NaN values not allowed in calculated columns (present in the break rows, this

 caused poblems with drawing the output graph) (O. Kogenhop, NLR).

 

Improvements

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* Automatic Firebird table recreation when database table changes counter

 approached limit of 255 (W. Visser, VisserTek).

 

New features

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* Output table curve counting and renumbering (O. Kogenhop NLR).

* Added option to add curve and group number into the graph using the graph

 symbol. Use '$' as curve/point symbol in the graph options. (O. Kogenhop NLR).

* Additional options to number curves through the graph settings "line styles"

 (O. Kogenhop NLR).

 

GSP v12.0.0.8                                                         05-01-2022

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Fixed

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* Internal table naming based on case naming is now truncated (for users there

 is no change, users can still use long configuration and case model names).

 (O. Kogenhop NLR)

* Fixed table parameter redefinition when more than 255 changes are scheduled,

 this is to circumvent a feature of the currently used DB. (W.Visser VisserTek)

* Project window security options linked to new SQL database tables from the

 GSP main window "Environment options". (O. Kogenhop NLR)

* Option to clear the security markings. (O. Kogenhop NLR)

* Specific heat calculation in turbine fixed. (W.Visser VisserTek)

* Deleting of breaks from table view. (O.Kogenhop NLR)

 

Improvements

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* Enforcing AS755/ARP5571 parameter naming is done via a separate option,

 default GSP parameter naming prevails unless the users check the "Rename

 parameters to recommended" output option. (O. Kogenhop NLR)

* Improved the station renumbering to AS755 recommended station strings.

 (O. Kogenhop NLR)

* Case management is now enforced on all projects, the old model .MDL support is

 now discontinued. Pre GSP 11 models must now all have been converted.

 (O. Kogenhop NLR)

* Various updates and improvements of the GUI and hel manual. (O. Kogenhop NLR)

 

New features

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* Possibility to show alternative station string (3-digit numbering) in the

 model window. Showing the alternative station is controlled through the

 Project Window:  Options -> General... -> tab "Model", option "Show

 alternative station string in model window". (O. Kogenhop NLR)

 

GSP v12.0.0.7                                                         27-10-2021

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Fixed

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* Problem skipping trasnient/steady-state series output points.

 (W.Visser VisserTek)

* Problem output parameter selection comboboxes in control components not filled

 fixed. (W.Visser VisserTek)

* Output table <auto-break> bug fixed; a break sometimes was added after the

 first series results record if a break prior to the record was present (e.g.

 as break in between DP and first OD results record, project window Options ->

 Output... -> Output Tables option  "Add break between Init. Design and St.St."

 is checked). (O. Kogenhop NLR)

 

Improvements

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* Color picker for Ambient/Flight conditions window added. Color is reverted on

 cancelling window if changed. Added popup menu to revert to default color.

 (O. Kogenhop NLR)

* Added default output colors for all model components, color is reverted on

 cancelling window if changed. Added popup menu to revert to default color.

 (O. Kogenhop NLR)

* GUI improvements of window controls. (O. Kogenhop NLR)

 

GSP v12.0.0.6                                                         08-10-2021

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Fixed

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* Problem progressbar not updating during project load (W.Visser VisserTek).

* Problem with divide by zero when using DP equation schedulers.

 (W.Visser VisserTek)

 

Improvements

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* Much faster loading projects from mainform (W.Visser VisserTek).

* GUI improvements of window controls. (O. Kogenhop NLR)

 

GSP v12.0.0.5                                                         03-10-2021

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Improvements

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* GUI improvements of window controls. (O. Kogenhop NLR)

 

GSP v12.0.0.4                                                         29-09-2021

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Fixed

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* Problem deleting rows with multiple cases selected solved.

 (W.Visser VisserTek)

 

GSP v12.0.0.0                                                         09-03-2021

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New features

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* First version 12 release with Firebird 3.0 database. Database per projects

 with tables per run case, saved in database with same name as project. This

 means a projects can consist of 2 files:

 - projectname.mxl

 - projectname.FDB (the simulation result data, optional: if not existing a new

   emptu database will be created).

 Multiple cases can be selected for plotting in the graph panel.

 (W.Visser VisserTek)

 

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GSP v11.6.0.1                                                         27-05-2021

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New features

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* Implementation of interface and options to output according to standards

 SAE AS755 (station designation and nomenclature) and SAE ARP5571 (performance

 presentation and nomenclature).

 Model window: Options -> Output options -> tab "Output Standards"

 

GSP v11.6.0.0                                                         09-03-2021

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* Release

 

GSP v11.5.1.3                                                         08-03-2021

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Improvements

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* The dialog to set the station number now expresses the component name in the

 question on top of the name in the caption of the dialog. This makes if much

 more easy to see which station is being edited. (O. Kogenhop NLR)

* Warning settings for deprecated components now moved to environment options.

 (O. Kogenhop NLR)

* Multi Reactor model emission calculations; reinstated mixing to original pre

 11.3.1.3: mixing at entrance of the multi reactor removed, mixing takes place

 at the end of each reactor. (E.R. Rademaker/O. Kogenhop NLR)

* Fuel pump enabling now configurable in model configuration. Graphical user

 interface is more intuitively organized by selecting the shaft ID in

 configuration mode. (O. Kogenhop NLR)

 

New features

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* Turbine PTO is now exposed and available as an off-design variable.

* Older rotor speed and thrust controlers now compatible to use with case input

 control components.

 

GSP v11.5.1.2                                                       10-10-2018

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Fixed

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* Used bleed flow fraction is now reset during DP series calculations when using

 a DP iteration component.

* Additional and inconsistent <auto-break> lines are not inserted in the output

 table anymore.

 

New features

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* The case management options tab (of the GSP environments window) now has an

 option to allow DP input in OD cases (option is called "Allow DP input in OD

 cases"). This should be used causiously and sparsely, but can aid enormously

 when you are OD series tuning a model. This enables changing the map design

 point in the map and hence the map design Beta and speed values.

 

GSP v11.5.1.1                                                         06-03-2018

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Fixed

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* Incorrect warning message about "Over-fuelling!" when using the Multi-Reacctor

 combustor model.

 

Improvements

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* More off-design properties of the flight/ambient conditions model published.

 

New features

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* Additional option for user specified Equivalence Ratio (ER) in the combustor

 Fuel injection (FF) and Primary zones. This allows for far more accurate

 calculation of the emissions of the multi reactor component model.

* Optional expression added to the Property Controller component for user

 specified property control.

 

GSP v11.5.1.0                                                         05-01-2018

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* Customer specific release

 

GSP v11.5.0.1                                                         04-12-2017

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Fixed

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* Multimap compressor component variable name changed to exclude the space. Now

 the output parameter can be used in additional calculated parameters and e.g.

 schedulers (NLR and customer specific library component).

* Added bleeds grid numerical columns, fraction, flow and delta H to expression

 evaluation so that constants can be introduced.

 

GSP v11.5.0.0                                                         06-09-2017

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* Release

 

Improvement

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* Added the bleeds grid numerical columns for the definition of bleed flow or

 fraction and bleed relative enthalpy position to the expression evaluator

 procedure so that constants or expressions can be used in the grid. This is

 applicable to all components that have the bleed grid functionality (e.g.

 ducts and compressors).

* Constant expressions component is not strictly confined to case model mode any

 more. This allows for usage of defined constants in multiple configurations or

 cases.

 

Fixed

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* API interface property window: columns "Value" and "Active" are now editable

 again.

* Bleeds grid can now only be edited in a model configuration node.

 

GSP v11.4.8.1                                                         14-04-2017

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Improvement

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* Improvement of the enthalpy balance in the turbine cooling source.

 

Fixed

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* Additional API functions added and internally used functions updated.

 

GSP v11.4.8.0                                                         21-07-2016

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* Release

 

GSP v11.4.7.1                                                         04-04-2016

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Fixed

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* Invisible Input (free state option) problem in Variable Geometry controller

 fixed (W.Visser).

* Fixed GSP main application window not showing on some Windows PC's (W.Visser).

* Calculation of gamma for compositions with liquid water is now calculated for

 the gas part only (O. Kogenhop, NLR).

* Browsing for an existing model when opening a model now uses the last folder

 from the last opened model when the environment option "Use last opened model

 file path" is checked when models have been closed during the session

 (O. Kogenhop, NLR).

 

Improvements

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* Save file format improved by removing non printable characters for XML

 according to xml specification (O. Kogenhop, NLR).

 

GSP v11.4.7.0                                                         21-03-2016

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* Release

 

GSP v11.4.6.1                                                         24-02-2016

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New features

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* Added various functions to the standard GSP API (O. Kogenhop, NLR).

 - GetStStTableSize API function; Get the St.St. table size.

 - GetStStTable API function; Retrieve the amount of characters in the St.St.

   table report.

 

Fixed

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* Problems opening GSP on certain computers (the application window did not show

 while the GSP.exe application was running in the background).

 

GSP v11.4.6.0                                                         24-02-2016

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* Release

 

GSP v11.4.5.6                                                         22-02-2016

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Improvements

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* Help manual updated (O. Kogenhop, NLR).

* Added turbine DP rel pressure loss as a design property (CalcDesLoadDPrel) to

 set the pressure loss (O. Kogenhop, NLR).

* The model data report is restructured so that the the model input data is now

 reported for:

 - the additional output component,

 - the case control components,

 - the schedule equation components.

 

Fixed

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* Upon choosing the sticky note custom string option, the note header text now

 resembles the text from the input field like the preview (O. Kogenhop, NLR).

* Moving of "ctCfgNone" component types (components that may be put in any case

 or configuration node) is now possible when the component is moved from a

 configuration to (a child configuration with) a case node model. An example of

 such a component is the "Add. Output Component" (O. Kogenhop, NLR).

 

GSP v11.4.5.5                                                         05-11-2015

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New features

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* Added the "Exit to amb dp_rel" input field (CalDesLoaddprel) to the design

 property list and can now be used to optimize the exhaust pressure loss or

 turboshaft exhaust pressure loss (O. Kogenhop, NLR).

 

Improvements

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* Help manual updated (O. Kogenhop, NLR).

 

Fixed

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* Fixed displaying the table data graphically through the "graph" button of the

 Design Point iteration model component. Also fixed the components updating of

 the header of the first column of the table when selecting a parameter from

 the drop-down parameter selection box (O. Kogenhop, NLR).

 

GSP v11.4.5.4                                                         24-09-2015

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New features

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* Added various functions to the standard GSP API.

 - CalculateSteadyStatePoint API function; Perform a steady state calculation

   based on the current input parameter settings

 - GetInputDataListSize API function; Get the amount of active input parameters

 - GetInputDataList API function; Get the actual input parameters and the

   parameter attributes (units, values, index)

 - GetOutputDataListSize API function; Get the amount of active output

   parameters

 - GetOutputDataList API function; Get the actual output parameters and the

   parameter attributes (units, values)

 - InitializeModel API function; Model initialization function

 - ResetODinputtoDP API function; Reset OD input to design values (but not for

   input parameter grid) (O. Kogenhop, NLR).

 

Improvements

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* Changed model window source to third party component (Virtual Treeview) source

 changes (O. Kogenhop, NLR).

 

Fixed

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* Resetting the sample maps and projects only removed the existing folders, and

 did not copy the standard versions due to an incorrect path, this is now fixed

 (O. Kogenhop, NLR).

 

GSP v11.4.5.3                                                         24-08-2015

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New features

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* New Sticky Note component in the auxiliary component library.

 This component is an example of a joint cooperation of a GSP CDP (Component

 Developers Package) user and the GSP team developers. The CDP enables users to

 create their own custom libraries and components like the GSP team developers.

 A licensed CDP user (P.J. Holden from SSEL) created the initial sticky note

 component to provide a means to quickly add model notes to the model window.

 The initial Sticky Notes component source code has been donated to the GSP

 team developers who re-structured the component to a model component so that

 it can be used by the GSP user community. The GSP team members wish to express

 their gratitude to Mr. Holden for donating the source code for implementation

 in GSP (P.J. Holden, SSEL; O. Kogenhop, NLR).

 

Improvements

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* RANDOM (0-1 range) function added as parameter for expressions in schedulers

 and also in output calculated expressions. Only one RANDOM call is allowed per

 expression. Can be used to simulate noise in schedule inputs, component

 conditions or sensor output (W.Visser).

* GAUSS function (with Sigma (Std.Dev.)  =1 ) added as parameter for expressions

 in schedulers and also in output calculated expressions. Only one GAUSS call

 is allowed per expression. Can be used to simulate noise in schedule inputs,

 component conditions or sensor output (W.Visser).

* The Time / Point variable can now be used in Control/Scheduler expressions

 both as 'Point' or as 'Time' (not case sensitive). Example: use an expression

 deteriorate compressor (dETAperc) with time function (W.Visser).

* In output calculated expressions, now both 'Time' and 'Point' can be used for

 for the series 'Time' variable (not case sensitive) (W.Visser).

* Numeric formatting code improved and cleaned up: Windows format setting now

 adopted all over. Automatic conversion of project files with deviating

 decimal symbols in the xml code. Exception is the station numering which only

 can have '.' in it as it is also used for parameter identifiers (preferred is

 not to have '.' in station numbers) (W.Visser).

* Dtip added as input for (radial) turbomachinery. Only active in turbine for

 calculation of Utip and U/Co. Added output option UCo for output of Utip, Co

 and U/Co (W. Visser).

* The inlet exit pressure calculation is now a function resulting the status of

 the calculation (true/false), the calculated pressure is now a function

 parameter. This is required to prevent calculation failing without notice.

 (O. Kogenhop, NLR).

* Renamed customer specific component options CheckFld1 to the ancestor name:

 Otr (temperature ratio output) (O. Kogenhop, NLR).

* The output tab sheet and the remarks tab sheet are now default the second to

 last and last tab sheets of the component data input window. This prevents the

 modeller to search for the output option tab sheet between the other tab

 sheets (O. Kogenhop, NLR).

 

Fixed

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* Bug preventing normalization design value of equation in Scheduling

 components (W.Visser).

* Bug in numeric table graphs (Transient series inputs etc.) plotting checkbox

 and string columns: now these are omitted (W.Visser).

* Various other problems in the numeric table graphs fixed (W.Visser).

* Bug in Monte Carlo case controller: problem with scaling from input values to

 Monte Carlo values in Transient series grid resolved (W.Visser).

* Labels on the visual model component icon on the model window now transmit the

 mouse click and drag event to the parent (the GSP component object). Now when

 clicking on labels, the model property window can be opened, the component

 sub-menu displayed, start a drag operation, select the component, etc.

 (O. Kogenhop, NLR)

* Properly setting the output parameters for the inlet map parameters option.

 The 'Oper.curve pars' output option now sets the ambient Mach output parameter

 and the corrected in/out flow option of the inlet. Note that the corrected in

 flow of the downstream is now set by the inlet and locked until released by

 the inlet 'Oper.curve pars' option (O. Kogenhop, NLR).

 

Obsolete

--------------------------------------------------------------------------------

* Removed the save to old *.mdl format from the file menu. The third party code

 for storing old mdl files is no longer maintained. The old model file format

 also lacks many of valuable features introduced with the project oriented

 model design and thereby depreciating the model (O. Kogenhop, NLR).

 

GSP v11.4.5.2                                                         20-07-2015

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Improvements

--------------------------------------------------------------------------------

* Compressor surge margin calculation in separate function to enable surge

 margin calculation in descendants (O. Kogenhop, NLR).

 

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Fixed

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* Problem with enabling/disabling Deterioration switch due to setting from

 model level of switch when not applicable (Deterioration tab sheet not

 visible) (W.Visser).

* Problem with displaying the operating point data in the multi map compressor

 component (incorrect corrected mass flow parameter name) (O. Kogenhop, NLR).

 

GSP v11.4.5.1                                                         29-06-2015

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Improvements

--------------------------------------------------------------------------------

* Published off-design map effect property of the Multi Map Compressor to enable

 control from other components, or to make a free state variable from the

 property using the "Property Controller" (O. Kogenhop, NLR).

 

GSP v11.4.5.0                                                         25-06-2015

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* Release

 

GSP v11.4.4.9                                                         17-06-2015

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Added additional functions for the GSP API (O. Kogenhop, NLR).

 

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* The torque numeric input field is now enabled/disabled with the power input

 numeric input field of the load control component (O. Kogenhop, NLR).

 

GSP v11.4.4.8                                                         04-06-2015

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Fixed

--------------------------------------------------------------------------------

* Bug in Exhaust Nozzle component expansion calculation in case Con-Di option

 active and Area ratio <=1 (producing invalid station 8/throat output).

 (W. Visser).

* Ideal Con-Di nozzle area calculation moved up in the calculation hierarchy to

 allow proper calculation of overall total Aexit (multiple nozzle) calculation

 which is used in the installation effects component (O. Kogenhop, NLR).

 

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Renamed Aexit (total output parameter of the system performance output

 options) to a more meaningful output parameter name from Aexit to A9tot; this

 is for consistent output parameter naming (total inlet entry area and free

 stream highlight area are named A1tot and A0tot respectively). If this output

 parameter is used in equations or referred to in components please open the

 model and reselect the total exit area output parameter. (O. Kogenhop, NLR)

 

GSP v11.4.4.7                                                         22-05-2015

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Fixed

--------------------------------------------------------------------------------

* Bug in Combustor heat sink connection code: no adding of Qhs to heat sink

 equation in case of specifying WWf, FAR or SOT. (W. Visser)

* Problem iterating towards heat sink external wall temperature in case no

 radiation (emissivity 0). (W. Visser)

 

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* More extensive input error reporting at Heat Sink external heat transfer data

 input validation. (W. Visser)

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868 and go beyond this standard

 (additional function calls). (O. Kogenhop NLR)

 

GSP v11.4.4.6                                                         15-04-2015

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Fixed

--------------------------------------------------------------------------------

* Problem with Exhaust nozzle component throat area calculation using geom. area

 specification option and CDthroat value <1. (W.Visser)

* Problem with decimal separator with other Windows locales (FormatSettings)

 solved: now both '.' and ',' can be used interchangeably in the user interface

 fields. Note that in map text files, always the '.' must be used for decimal

 separator. (W.Visser)

 

GSP v11.4.4.5                                                         03-04-2015

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Fixed

--------------------------------------------------------------------------------

* Bugfix for ideal expansion in custom customer component library: Max Area is

 ignored as Aexit is calculated in CalcAdditionalOutput (after max Aexit

 limitation) (Paul Holden, SSEL)

 

GSP v11.4.4.4                                                         13-02-2015

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Fixed

--------------------------------------------------------------------------------

* Problems using Measurement arrays (Adaptive Modelling) fixed (W.Visser)

 

Improvements

--------------------------------------------------------------------------------

* Unscaled map input parameters can now be added to output (to lookup operating

 point in unscaled map for map tuning). (W.Visser)

 

GSP v11.4.4.3                                                         21-01-2015

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Small fix for lib registration for a custom library (NLR). (O. Kogenhop NLR)

 

GSP v11.4.4.2                                                         21-01-2015

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug causing DP recalculation of turbine Out1.H with isentropic efficiency if

 Design polytropic specified. (W.Visser)

* Small problem with abstract THeatExchanger class (if no heat soakage; error

 in heat soakage calculation) fixed. (W.Visser)

* Bug in Intercooler control (duplicate Inp2des variable) fixed. (W.Visser)

 

GSP v11.4.4.1                                                         09-01-2015

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Propeller map bug (UseStdFunction needs override). (W.Visser)

* Registration dialog not accepting some registration keys (O. Kogenhop NLR)

 

GSP v11.4.4.0                                                         24-11-2014

--------------------------------------------------------------------------------

* Release

 

GSP v11.4.3.3                                                         19-11-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Propeller model (TPropellerForm) thoroughly revised: map DP defined using

 Map Beta and Propeller Pitch Angle. Code updated, bugs fixed, extensive

 comments added. (W.Visser)

* Different propeller models inconsistencies with theory resolved.

 (E.Rademaker NLR/ W.Visser)

 

GSP v11.4.3.2                                                         16-11-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* 'Prescribe efficiency' propeller model option added (on top: one may need to

 update propeller component data in existing models). The 'Prescribe efficiency'

 model uses the ideal (or actuator disc) propeller model to calculate maximum

 total efficiency (i.e. propulsive efficiency) at which any user specified

 value exceeding it is truncated. (W.Visser)

* Bug in propeller map interpolation routine fixed: solves many stability

 problems with turboprop models. (W.Visser)

* Propeller map handling improved. Now consistent map lookup mechanism plus

 user interface, graphical representation, DP rectangle properly drawn

 at correct location. (W.Visser)

* Propeller pitch angle now scaled in scaled maps (W.Visser)

* BrentDekker root finding algorithm added in ZeroinBrentDekker.pas as better

 alternative for TAFQUIR. Used for propeller component model (W.Visser)

* Potential Div_by_zero problem intercepted in drawing DP rectangle in map

 graphs. (W.Visser)

 

Fixed

--------------------------------------------------------------------------------

* Several general map GUI problems fixed. (W.Visser)

* Propeller map handling bugs fixed. (W.Visser)

* Propeller operating curve plot in scaled maps (W.Visser)

* Design gear ratio input field not accessible due to incorrect tag value. Now

 labelled with design tag to make the input field editable in both

 configurations and design run cases. (O. Kogenhop NLR)

* Fixed storage of the map transient graph settings, now no default reset to

 symbol "0". Instead the proper symbol is read from the transient graph options

 from the model window options. (O. Kogenhop NLR) Bug report # 0000061.

 

GSP v11.4.3.1                                                         25-09-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* For CDP users and GSP programmers, a tagidCfgandOD with value of 34 has been

 added to support (numeric) input fields to be editable in both configurations

 and OD runcases. (O. Kogenhop NLR)

* Initial version of a frame object to handle table lookup has been added for

 reduced development and maintenance. Each instance of the frame inherits

 functionality from the original frame. The frame has been developed by a CDP

 user and has been adopted by the GSP development team. (P.J. Holden SSEL)

* Now Time field can be used in Calculated expressions in Transient table

 without exception problems. (W. Visser)

* Problem in Case control transient grids when changing case type (inconsistent

 time steps after resetting 1st row to 1 or 0): now only if single row.

  (W. Visser)

 

Fixed

--------------------------------------------------------------------------------

* Problem copying combustor (and other) components in model panel fixed.

 (W. Visser TU Delft)

* Problem preventing Display of comments in output table comment columns.

 (W. Visser TU Delft)

* The implementation of the (generic) gear ratio in version 11.3.0.2 caused a

 possible ambiguous definition of the propeller speed. The generic gear ratio

 is not input for the propeller component, instead the gear ratio is calculated

 by the given design propeller speed and the design turbine speed. This implies

 that the gear ratio is fixed for the propeller/turbine. (O. Kogenhop NLR)

 

GSP v11.4.3.0                                                         17-09-2014

--------------------------------------------------------------------------------

* Client release, not public

 

GSP v11.4.2.2                                                         17-09-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Improvements to the registration module. (O. Kogenhop NLR)

 

GSP v11.4.2.1                                                         04-09-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Improved code in mixer.pas for TMixer component model class. Extended with

 virtual method SetAreas_and_Conditions for override in descendant classes

 for variable area mixers. (W. Visser)

 

Fixed

--------------------------------------------------------------------------------

* Fixed crashing of models when more than 255 model output parameters (actually

 table fields) are selected. Mantis issue #0000056. A warning message per

 output parameter that exceeds the limit will be shown with an option to ignore

 further messages. (O. Kogenhop NLR)

* Fixed Mantis issue #0000057 (Inappropriate Variable Geometry Component

 Restrictions). In configurations and design cases the "Effects per degree

 vane" group box and its contents, the "Schedule parameters" option and the

 "Schedule" table are all writable. Additionally the VG PR effect should be

 always enabled when the vane angle is controlled by a separate off-design vane

 controller. (O. Kogenhop NLR)

* Fixed Mantis issue #0000058 (coding error). Incorrect detection of active user

 input fixed for the second input state input2. As there are very few

 controllers with 2 free state options implemented, the impact is on current

 models is limited (this would have been noticed much earlier).

 (O. Kogenhop NLR)

 

GSP v11.4.2.0                                                         21-07-2014

--------------------------------------------------------------------------------

* Release

 

GSP v11.4.1.3                                                         02-07-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Manstis issue #55: in schedule equation controller, with property is state for

 OD simulation, state is now normalized to schedule input (instead of current

 property input value). As a result Newton-Raphson iteration starts at input

 and not at current property state. Behaviour of this alternative solution

 needs to be monitored as there are many different types of properties to

 control. May want to make this change optional under advanced options in the

 future. (W. Visser).

 

Improvements

--------------------------------------------------------------------------------

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868 and go beyond this standard

 (additional function calls). (O. Kogenhop NLR)

 

GSP v11.4.1.2                                                         13-06-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

 

Fixed

--------------------------------------------------------------------------------

* In the Operating Envelope Scheduler case component, only operating points that

 fall inside the limits of the envelope are displayed with option "Output on

 limits" not checked. This is a fix for the reported bug #0000052.

 (O. Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* If a previous instance of GSP is detected, then the new instance will shut

 down while the model name will be passed to the other instance. This prevents

 multiple instances of GSP and thus conflicting database access issues.

 (O. Kogenhop NLR)

* Warning added when a model contains deprecated components. Warning can be

 disabled in the model general options window. (O. Kogenhop NLR)

 

GSP v11.4.1.1                                                         11-06-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* TNumField range validation now skipped on FieldForm descendant Form classes

 if Cancel button clicked. (W. Visser)

* Range validation of Case controlled input fields handling improved, both

 run time (error messages in Comment data table field) and during data entry.

 (W. Visser)

* AB fuel controller input validation improved (fractions must be within

 0..1 range). (W. Visser)

* Equation controller schedule value field parameter types now set equal to

 input field types (e.g. Power controller power code in Case controller now

 shows as in Power controller itself). (W. Visser)

* Project form caption now shows focused (current selected) Configuration and

 Case. (W.Visser)

 

Fixed

--------------------------------------------------------------------------------

* Bug related to AB fuel controller not properly setting max. AB fuel flow

 depending on "Fraction of max Stoich. Wf" input. (W. Visser)

 

GSP v11.4.1.0                                                         07-06-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* If TIT (Ttexit) input in combustor is beyond maximum stoichiometric, then the

 stoichiometric max Ttexit value is accepted with corresponding fuel flow (and

 no error generated). A warning 'Ttexit limited!' is added to the Comment

 field. This improvement is particularly useful with afterburner (reheat)

 simulation. (W. Visser)

 

GSP v11.4.0.9                                                         05-06-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Minor improvements to improve/expand custom component functionality.

 (W. Visser)

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

 

GSP v11.4.0.8                                                         04-06-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Calculation of fuel that can be added to a mixture to obtain stoichiometric

 combustion. Instead of FAR based (only accounting for O2 fraction), now O2

 in oxidant reactant is used instead (taking into account (1 few % O2

 conversion into small NO (most), N2O, O, OH and CO fractions).

 Advise not to use Wf_from_FAR function anymore.  (W. Visser)

 

GSP v11.4.0.7                                                         29-05-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Option to draw data Point values on data points instead of symbol in XY and

 Map graphs. Use '#' as symbol to activate this option in the Graph settings.

 (W. Visser)

* When output is interrupted due to fields not found, and new tables are

 generated, the St.St.Series/Transient Point/Time values stays where it was

 (and is not incremented). (W. Visser)

* Exception implemented in case the "Inlet gas fraction not used for combustion"

 specification is <0 or >1 in the Simple AB controller and derivatives.

 (W.Visser)

 

Fixed

--------------------------------------------------------------------------------

* Bug in Manual and Loop case controllers when case controlling fields with

 captions that are split into multiple lines (LnBrk inserted). (W. Visser)

 

GSP v11.4.0.6                                                         26-05-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

* Code improvement: CalcAdditionalParsEnd virtual method added to set

 RecalcNewState (e.g. for custom component Hidden Runs) without conflicting

 with standard Limiter component. (W. Visser)

 

GSP v11.4.0.5                                                         23-05-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug with enabling/disabling Min AB power setting (fuel flow, exit temp. etc.)

 in the ABcontroller component. (W. Visser)

 

GSP v11.4.0.4                                                         20-05-2014

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

 

GSP v11.4.0.3                                                         19-05-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug causing error/failure to converge (oscillation) at near zero fuel in

 combustor downstream other combustor (due to change in temperature resulting

 from change in N2O+NO<->N2+O2+O+N+OH etc. system equilibrium). See also

 improvement below. (W. Visser)

 

Improvements

--------------------------------------------------------------------------------

* TAFQUIR class added in GSPglobal for runtime creation of AFQUIR objects

 (instead of a single static AFQUIR data structure which does not allow nested

 AFQUIR iterations). Backward compatibility with old static AFQUIR data

 maintained. (W.Visser)

* Combustor iteration towards specified Ttexit optmized, speed improved

 (TAFQUIR class) and also adapted to always recalculate chemical equilibrium,

 also if Wf=0. No reset to specified Ttexit anymore. (W. Visser)

* Overfuelling handling improved: fuel inb excess of stoichiometric is now kept

 outside the combustor reactor simulation en translated to a drop in combustor

 efficiency due to unburnt fuel. Any reaction of unburnt fuel towards CO, C

 etc. is not simulated. User specified combustor efficiency remains active by

 multiplying with the released heat (as a heat loss). (W. Visser)

* Iteration settings accuracy and Jacobian perturbation fields improved and

 validated to be >0.000001 (avoid being set to 0). (W. Visser)

* Code only (for CDP):

 St.St.Series and transient controlled Inputs (by series input tables in

 control and case controller components) now also set in CalcNewStateStart

 method to ensure timely update for evaluation in code called prior to

 CalcListBegin (W. Visser).

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

 

GSP v11.4.0.2                                                         05-05-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug preventing error reports in output table Comment column.

 (W. Visser)

 

Improvements

--------------------------------------------------------------------------------

* Error handling and indication of errors/aborted simulation in Comment column.

 (W. Visser)

* Handling of invalid data rows in XY and map plots. (W. Visser)

 

New features

--------------------------------------------------------------------------------

* Option to plot invalid data points (Graph options, General tab sheet).

 (W. Visser)

 

GSP v11.4.0.1                                                         03-04-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Minor problems upon saving models with unicode characters in the filename

 (non-ascii) causing corruption of the project file. (O. Kogenhop NLR)

* Correctly storing the windows username with non-ascii characters in the log

 window (upon saving and re-opening project files). (O. Kogenhop NLR)

* Small fix to display the user defined text in the comment of the output table

 (option "Add user specified text to comment"), this text was only visible when

 also the option "Add case node number/name to comment" was checked. These

 options now work independently from each other. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Further improvements to the API by introduction of dll functions that comply

 to the Aerospace Recommended Practice ARP 4868. (O. Kogenhop NLR)

 

GSP v11.4.0.0                                                         27-03-2014

--------------------------------------------------------------------------------

* Release

 

GSP v11.3.4.2                                                         25-03-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Updating of the combustor FAR exit value now correctly calculated during

 iteration. (O. Kogenhop NLR)

* Fixed writing of selected API output parameters to the output grid of the API

 interface component for design cases. (O. Kogenhop NLR)

* Proper calculation of the user specified fuel composition mole mass (for

 component CxHyOz). From NASA gas model derived constants for Cp(fuel) are

 divided by 12. Implicitly assuming that the molecular mass of the fuel is that

 of C{1}H{H/Cratio}O{O/Cratio} (E. Rademaker NLR)

* Cp_CxHyOz calculation (if user specificied fuel composition is 100% CxHyOz Cp

 now does not return zero causing a division by zero) (E. Rademaker NLR)

* Proper calculation of Fuel Formation Enthalpy Per Kg for specie CxHyOz.

 (E. Rademaker NLR)

 

Improvements

--------------------------------------------------------------------------------

* Off-design fan performance results in compressed air being transferred from

 duct to core or vise versa depending on the off-design BPR value (see the

 technical manual for the Cf factor). The transferred air needs to be mixed

 with the other stream. The effects of mixing (enthalpy for temperature and

 impulse for pressure) are small, but have been introduced to complete the

 energy balance.  (O. Kogenhop NLR, E. Rademaker NLR, Wilfried Visser TUD)

* Addition of NOx emission indices on equilibrium concentrations. (E. Rademaker

 NLR)

 

New features

--------------------------------------------------------------------------------

* Development of several API functions. (O. Kogenhop NLR)

 

GSP v11.3.4.1                                                         31-01-2014

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Access Violation fixed for Vessel P&T controller. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Upgrade to Delphi XE5 development tool. (O. Kogenhop NLR & W.P.J. Visser TUD)

 

GSP v11.3.4.0                                                         16-12-2013

--------------------------------------------------------------------------------

* Beta release for API testers. (O. Kogenhop NLR)

 

GSP v11.3.3.1                                                         29-11-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Added a scale value column to the output parameter grid of the API interface

 component. (O. Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* Added registration keys for registering the GSP API version. (O. Kogenhop NLR)

* Free GSP API (Microsoft Windows DLL) version included in the installer.

 (O. Kogenhop NLR)

* New and updated GSP API (DLL) functions to use GSP from other sofware

 programs. (O. Kogenhop NLR)

 

GSP v11.3.3.0                                                         21-10-2013

--------------------------------------------------------------------------------

* Release

 

 

GSP v11.3.2.2                                                         17-09-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Embedding maps in the power controller component caused the project to fail to

 load the next time it was opened. (O. Kogenhop NLR)

* Fixed the resetting of the OD Athr_rel (A throat relative to design) in the

 nozzle control component when the reset to design is requested (Reset OD to DP

 Input) (O. Kogenhop NLR)

* Customer component bug fixes and improvements. (O. Kogenhop NLR)

* Fundamental pressure loss in the duct component is now calculated after the

 calculation of the heat input on the duct flow. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Added an environment option to purge invalid model links in the re-open model

 and table lists. Default option is unchecked. When unchecked, invalid model

 and table file paths are shown disabled. (O. Kogenhop NLR)

* Improved the help manual descriptions of map formats. Note that map schedules

 (2 input parameters, 1 output parameter) need to be defined by an increasing

 argument (first or X parameter) value and an increasing parameter (second or Y

 parameter) value! (O. Kogenhop NLR)

 

GSP v11.3.2.1                                                         13-09-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Embedding maps in the power controller component caused the project to fail to

 load the next time it was opened. (O. Kogenhop NLR)

* Fixed the resetting of the OD Athr_rel (A throat relative to design) in the

 nozzle control component when the reset to design is requested (Reset OD to DP

 Input) (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Added an environment option to purge invalid model links in the re-open model

 and table lists. Default option is unchecked. When unchecked, invalid model

 and table file paths are shown disabled. (O. Kogenhop NLR)

 

GSP v11.3.2.1                                                         13-09-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Handling of errors when pasting into input grids improved (if error: grid

 unchanged and root cause reported). (Wilfried Visser TUD)

 

Fixed

--------------------------------------------------------------------------------

* Problem with scaling back parameter when pasting into input grids solved.

 (Wilfried Visser TUD)

* Incorrect interpolation of the aferburner powercode controller when scheduled

 by an input controller has been fixed (reported bug 0000046) (O. Kogenhop NLR)

* Scrolling of the error/state grid for small Convergence Monitor window sizes

 has been fixed (reported bug 0000048) (O. Kogenhop NLR)

* Nozzle control now resets to original input data after simulation crash

(reported bug 0000049) (O. Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* Introduced an output parameter to file component (for registered GSP users).

 The component allows the modeler to create the layout of an output file where

 the amount of parameters, headers, units, point/time data, etc. can be

 configured. Upon running the simulation, an output file will be created or

 overwritten at the specified location. (O. Kogenhop NLR)

 

GSP v11.3.2.0                                                         16-07-2013

--------------------------------------------------------------------------------

* Release

 

GSP v11.3.1.5                                                         12-07-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Improvement of the AB power controller:

 - output parameters added for the min, max AB power code and the AB min and

   max values of the AB parameters

 - AB power code parameters can now be scheduled in case controllers

 (O. Kogenhop NLR)

* Improved automatic breaking in steady-state output table. (O. Kogenhop NLR)

 

GSP v11.3.1.4                                                         02-07-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Fixed reverting of the flight/ambient conditions transient/st.st. table when

 the window is cancelled and the unitsystem option had been changed by the

 modeller. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* DHW output parameter (for turbomachinery shaft power) now renamed PWshaft_..

 meaning power to/from component with adiabatic non-isentropic compression/

 expansion.

* DHwin and DHWin2 output parameters added for real dH * Win including all

 effects (for energy balance).

* After pasting into Flight/Ambient conditions transient input grid, dTs input

 now always sets atmosphere type to ISA+, even if Ps specified.

 

GSP v11.3.1.3                                                         28-06-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in Intercooler component causing AV with coolant other than water (must

 set Cin2, Cout2 to Nil again !). (W.P.J. Visser TUD)

* Bug in determining the static exit properties of the combustor exit flow.

 (O. Kogenhop NLR)

* Bugfix 11.2.1.1 (fix for the static exit properties calculations of each of

 the individual reactors of the multi-reactor combustor model to be calculated

 correctly) for the multi-reactor model introduced a problem that design

 calculations where impossible to perform (if no emission model had been

 chosen). A message to contact NLR was displayed instead for emission model

 options other than the multireactor option. (O. Kogenhop/E. Rademaker NLR)

* Inproper initialization of the design values of the attached pressure vessel

 component caused the pressure vessel control component to fail calculation

 when being controlled by equation control components. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Multi Reactor model emission calculations. Adaption of the Crank-Nicolson

 trapezium rule. Now includes volume correction for concentration of

 pollutants. (E.R. Rademaker/O. Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* Additional general model option to disable warning for unlinked components.

 (O. Kogenhop NLR)

 

GSP v11.3.1.2                                                         06-05-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Turbine max design load calculation improved: now reporting relative pressure

 drop from turbine in case load is specified. Label "exit to ambient rel.

 press.loss" changed to "exit to ambient rel. press.drop". More convenient for

 free power turbine turboprop design sweeps maintaining a certain pressure drop

 for the nozzle, calculating and giving the drop for a certain power level.

 (W.P.J. Visser TUD)

 

Fixed

--------------------------------------------------------------------------------

* Problem when resetting model OD input to DP (AV due to no reset of CalcList).

 (W.P.J. Visser TUD)

* Problems with case control transient input grid not editable (W.P.J. Visser

 TUD)

* Problem with NaN fields appearing in calculated columns of <break> rows

 (causing exceptions). (W.P.J. Visser TUD)

* Case control interval setting now only adjusted to transient interval if

 transient interval is larger than case control interval. (W.P.J. Visser TUD)

* Bug in volume dynamics calculation (since v11.0.3.7) fixed. (E. Rademaker NLR,

 W.P.J. Visser TUD)

* Bug in gas constant calculation FR with water fractions fixed (small effect on

 water injection/wetted cycle simulations). (E. Rademaker NLR)

 

GSP v11.3.1.1                                                         19-03-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Moving model components with keyboard keys now evaluates model linkage to link

 the moved component to another component (for components with links).

 (O. Kogenhop NLR)

* Fan surgemargin was accidentally calculated for non map option "operating

 line". As there is no surge line for an operating line map, calculation

 failed. (O. Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* Introduced options to disable the mass flow error equations in the fan core

 and the fan duct. Note this was accidentally mentioned as new feature in GSP

 v11.3.1.0 (E. Rademaker NLR)

* Introduced a list of deleted case components on the window labeled "invisible"

 of the project windows collection. Double clicking on a deleted component

 restores the component only if no other components of the same type are

 already present in the model window. (O. Kogenhop NLR)

 

GSP v11.3.1.0                                                         08-03-2013

--------------------------------------------------------------------------------

* Release

 

New features

--------------------------------------------------------------------------------

* Introduced options to disable the mass flow error equations in the fan core

 and the fan duct. (E. Rademaker NLR)

 

Improvements

--------------------------------------------------------------------------------

* Improved the layout of the "Constant Expressions" data input window; increased

 the width, user sizeable, minimum width and minimum height.

 (O. Kogenhop NLR, W.P.J. Visser TUD)

 

Fixed

--------------------------------------------------------------------------------

* Message of the mixer error was not shown in the "States and Erros report" for

 some model options (although the actual error equation was added to the GSP

 equation set, so there was no impact on GSP output results).

 (O. Kogenhop, E. Rademaker NLR)

* Gear ratio output option overlapped several other output options.

 (O. Kogenhop NLR)

 

GSP v11.3.0.3                                                         20-02-2013

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in circular reference check in calculated expression in Output options.

 (W.P.J. Visser TUD)

 

GSP v11.3.0.2                                                         02-02-2013

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Gear Ratio (both design and off design, defined as ratio of impeller over

 shaft speed of turbomachinery component.

 files. (W.P.J. Visser TUD)

* The loop input case control component now has the ability to copy the loop

 data input from 1 loop to the other. (O. Kogenhop NLR)

 

Improvements

--------------------------------------------------------------------------------

* Improved the project file storage writing to comply to create well formed xml

 project files (continued from 11.3.0.1) This can result in some data loss in

 the stored custom units grid (only if the modeller has changed this; e.g.

 changed the mass flow unity from [kg/s] to [g/s] for modelling micro turbine

 cycles). This can be easily manually fixed by the modeller by regenrerating

 the custom units grid (Model window->Options->Output...->Formats) by pressing

 the "Reset to standard" button and re-enter the correct scale factors, formats

 and unity. (O. Kogenhop NLR)

* Improved consistency of font size and row heights of numeric input grids.

 (O. Kogenhop NLR)

* Changed the designation of the model component type of some of the unassigned

 model components. This improves the component movement from the current

 configuration to its child configuration or case model. (O. Kogenhop NLR)

 

Fixed

--------------------------------------------------------------------------------

* Bug caused crashing of loading a model/project with a turbocomponent with an

 active Operating Line map option. (O. Kogenhop NLR)

* Bug caused beta state to be added while Operating Line Map option was chosen

 in the Fan component. (E.R. Rademaker/O. Kogenhop NLR)

 

GSP v11.3.0.1                                                         11-01-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Improved the project file storage to comply to create well formed xml project

 files. (O.Kogenhop NLR)

 

GSP v11.3.0.0 (1st Delphi XE3 build)                                   07-01-2013

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Proper error message if invalid scheduler expressions and invalid scheduled

 values (based on calculated columns) (O.Kogenhop NLR).

 

GSP v11.2.2.2                                                         06-12-2012

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in calculation of Cp for fuel compression power calculation, only when

 using the user composition fuel, as changed in release 11.2.2.0 (from build

 11.2.1.1). (W.Visser TUD)

* Bug in Limit Schedule Eq. component, incorrect call to inherited code for

 calculating additional output function and when selecting a power setting

 component, the limiter self is now omitted. (O.Kogenhop NLR)

* Bug in TurbineStage component to calculate the static properties at NGV when

 the NGV becomes unchoked in off-design calculations. (O.Kogenhop NLR)

 

GSP v11.2.2.1                                                         24-10-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Fuel temperature rise due to compression notification now correctly given only

 when "Add fuel temperature rise due to compression" option is active (and not

 the option to account for the power adding it to a shaft power balance).

* Problem resetting output formats to standard fixed. (W.Visser TUD)

 

Fixed

--------------------------------------------------------------------------------

* Power Turbine fuel controller now displays the correct units for the control

 parameters. (O.Kogenhop NLR)

 

GSP v11.2.2.0                                                         08-10-2012

--------------------------------------------------------------------------------

* Release

 

GSP v11.2.1.1                                                         05-10-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Calculation of absolute H of fuel before (Hfueltank) and after fuel (Hfuelin)

 compression and output for use in system energy balance calculations:

 a) When using Hfueltank for the energy balance, the fuel compression system is

    INcluded in energy balance system boundary. Fuel compressor power and fuel

    temp effects calculation options (Fueltempincrease(des) and

    Fuelpumppower(des)) must be either both active or both INactive for the

    energy balance to remain consistent.

 b) When using Hfuelin, the fuel compression sysem is EXcluded from energy

    balance system boundary. The fuel compressor power calculation option must

    be DEactivated.

 Note that the energy balance expression can easily be calculated

 as an output calculated expression. For a simple turboshaft

 for example as a % of total input heat rate:

 100*(W1*H1+Wf*Hfuelin-W9.H9-PWshaft)/(Hv_b*Wf_b))

 When the energy balance is closed properly, the result of this

 expression should be close to 0 (typically less than 0.1 %).

 For gaseous fuels, compression power and fuel enthalpy rise is calculated

 using the user specified isentropic fuel compression efficiency. For liquid

 fuels, fuel compression/punp power is calculated as volume flow rate * dp and

 the resulting work per kg fuel added as a 'virtual total temperature' of the

 liquid fuel to account for the energy released as kinetic energy in the fuel

 jets when exiting the injector and entering the combustor.

* Mechanical power loss (i.e.(1-Etam)*dHW) added to output of turbine component

 (for energy balance purposes). (W.Visser TUD)

* The value of the universal gas constant has been updated from 8.31451 to

 8.3144621 J/(mol K) to represent the latest value according to "2010 CODATA

 recommended values" see also http://physics.nist.gov. (O.Kogenhop NLR)

 (more specific: http://physics.nist.gov/cuu/Constants/Preprints/lsa2010.pdf)

* Compressor bleed flow exit pressure calculation (linear, with dH fraction) has

 been replaced by a more accurate calculation based on the entropy changes and

 polytropic compressor efficiency. (O.Kogenhop NLR)

 

Fixed

--------------------------------------------------------------------------------

* Bug causing disabled Zp (Altitude) field in Design Ambient/Flight conditions

 form when using ISA+ atmosphere. (W.Visser TUD)

* Bug in Multi Reactor combustor (introduced by the area, velocity, mach option

 selection) for the reactor intersection/exit planes is now fixed. The emission

 indices are now correctly calculated. For the multi reactor emission model,

 the exit properties can be specified by specifying either area, velocity or

 Mach number from which with the static property calculation the other 2 will

 be calculated. During off-design the static properties are always calculated

 from the design area. (O.Kogenhop NLR)

* Bleeding flow from the compression phase results in a decreased amount of

 power required for the compression. Fixed the omission of the fan core bleeds

 correction in dHW. (O.Kogenhop NLR)

* Canceling a design series loop through the progress indicator (pause and

 cancel) now quits the design series calculation loop. (O.Kogenhop NLR)

 

New features

--------------------------------------------------------------------------------

* Added a Monte Carlo case input controller to generate multiple series based on

 user defined input parameters. An inverse  normal cumulative distribution

 function is used to calculate the input parameter based on the actual mean

 value and the standard deviation. (O.Kogenhop NLR)

 

GSP v11.2.1.0                                                         06-07-2012

--------------------------------------------------------------------------------

* Release

 

GSP v11.2.0.1                                                         03-05-2012

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Propeller component now uses the true airspeed for calculation of the advance

 ratio J (instead of the calibrated airspeed).

 

Improvements

--------------------------------------------------------------------------------

* Checking for an update is now possible from the main windows Help menu.

 (Help -> Check for update).

* When an update is available, the download button of the update interface

 window will take you immediately to the download location.

 

New features

--------------------------------------------------------------------------------

* The additional output value component now shows the name of the parameter on

 top of the component icon in the model window.

 

GSP v11.2.0.0                                                         25-06-2012

--------------------------------------------------------------------------------

* Release

 

GSP v11.1.4.8                                                         25-06-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Added warning messages to warn user when moving or copying components to parent

 nodes. It is now clear that this can only be done "per component", not for a

 selection of multiple components.

 

GSP v11.1.4.7                                                         16-05-2012

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Reset off-design input to design input now works correctly when resetting the

 OD input data to DP data when a case controller is present in the case node

 with activated "Set controlled values back to original after simulation run"

 case option or general model option "Set controlled values back to original

 after simulation run". As the button to reset off-design data to design values

 is not an actual simulation, resetting the values should be allowed and

 overrules the above mentioned options.

* Configuration read-only option not not propagating anymore in the project

 tree.

 

GSP v11.1.4.6                                                         16-05-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Options to 'Copy / Revert Options to parent' from the General, Thermodynamic,

 Iteration, Transient/Series, Output, St.St. and Transient Graph options within

 a project (similar to Copy/Revert component to parent).

* Options to 'Copy / Revert Options to parent' for the Ambient/Flight

 conditions.

* Read-only option in the General | Case management option to lock a case or

 configuration for writing. This lock inhibits any write operations to that

 case of configuration and reports a warning message. When set, the read-only

 option data has yet to be set in the project xml data: only after saving the

 case/config the read-only lock becomes active.

 Note that this read-only option is not inherited and instead persistently

 written to project xml data. Child without read-only setting do not inherit

 (to avoid automatic propagation of read-only to child cases/configs which is

 generally not wanted; read-only configs usually are at the top of the project

 tree).

 When changing the read-only option in a parent however, this change may

 optionally (user confirmation) propagate to child cases and configs with

 explicit read-only settings.

* Extension of xml data storage engine with option to inhibit inheritance (for

 the read-only option).

* Project tree pop-up menu item added to directly set the case/config read-only

 option (that can also be set in the General } Case management option). With

 this action, the read-only option is set directly in the project xml data.

 When checked the readonly option is active for that case of configuration.

* Project configuration and case node name text is colored blue if read-only

 option set.

* Face-lift of the back pressure exhaust component and control component. Unused

 GUI items are now invisible, reset to design valus works better, compatible

 with case control usage.

 

GSP v11.1.4.5                                                         03-05-2012

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Specific customer problem where the relative throat area is automatically

 adjusted when the augmentor is lit, but not reverted to the dry value when

 the augmentor goes back to dry with the use of a customer specific power

 control component.

* Generic Power control component now displays the correct design power code in

 the output table before a steady-state point or series is calculated.

 

Improvements

--------------------------------------------------------------------------------

* Improved column order checking of the generic power controller power code

 schedule.

* Updated the help manual.

 

GSP v11.1.4.4                                                         03-04-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* In combustor component, Copy des. fuel button (Copy des. fuel composition

 data from Design fuel tab sheet) now copies all data, not just the compositon

 table.

* Calculated Expressions (project output options) no checked for consistency

 (calculated parameters in expressions must be calculated in prior rows).

* Row move up/down function in Calculated Expressions table (right click or

 Ctrl-U/D).

 

GSP v11.1.4.3                                                         21-03-2012

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Handling of internal Refvalues in numerical (TNumFld) fields more robust.

 

GSP v11.1.4.1                                                         02-02-2012

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Migration to Delphi XE2 development environment.

 

GSP v11.1.3.3                                                         12-01-2012

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Addded off-design pressure loss property for the primary flow (e.g. duct) to

 the common ancestor for duct-flow components.

* Added design and off-design pressure loss properties for the secondary flow

 (e.g. heat exchanger cross-flow) to the common ancestor for two-flow modelling

 components.

 

Fixed

--------------------------------------------------------------------------------

* Text font sizes made equal for all gui items

* Enabled the 'Gas fraction not used for combustion' input field for option

 'Frac. of max stoich Wf' of the afterburner power control component.

 

Improvements

--------------------------------------------------------------------------------

* Moved the (flow 1; i.e. primary flow) design pressure loss property to a

 common ancestor class of the duct.

 

 

GSP v11.1.3.2                                                         08-12-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Now also WfPbref (WfPb reference schedule for PID control) in TGovernor

 control output parameter list.

 

GSP v11.1.3.1                                                         25-11-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in combustor when used as afterburner with Texit specified for OD.

* DP Pressure loss not calculated in AB combustor problem.

* Bug in combustor AB fundamental pressure loss calculation.

* Bug in combustor ER calculation if Wf=0 (ER of AB incoming gas)

* Bug causing error in case/config inheriting of gas composition output options.

 

GSP v11.1.3.0                                                         24-11-2011

--------------------------------------------------------------------------------

Release

 

Improvements

--------------------------------------------------------------------------------

 

GSP v11.1.2.1                                                         08-11-2011

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Added an output option to add the case node number or case name into the

 output table comment string. This way it is easier to keep track of which

 results are generated by which case.

* Optionally, a custom text or date can be added to the comment string. Access

 the options from the output options window.

* Sample Projects and Sample Maps are now also installed in MyDocuments\GSP

 subfolders so they canb be directly accessed and also modified in Windows

 Vista and higher.

* "Revert Sample Projects and Sample Maps to original" option added to Main

 window File menu. This is to set any changed projects or maps in the

 MyDocuments\GSP\Sample... folders back to original.

 

Fixed

--------------------------------------------------------------------------------

* Fixed writing the correct (design) surge margin result to the output table.

 The surge margin is not written to the output table (default) for design

 calculations, unless the general model option 'Calculate map scaling factors

 in Design Point cases' is checked. If a design calculation is followed by a

 steady state calculation, the surge margin should represent zero or the design

 value, not the last value from the steady state calculation.

* The map options 'no scaling' and the interpolation type now remain disabled

 options after graphing the map or exporting the map to an editor from a case

 model.

* Nag screen 'problems'

 

Improvements

--------------------------------------------------------------------------------

* Inheritance mechanism for the constructors of the map objects

* Warning when opening a map file from the map edit button when the .map

 extension is not associated to a text editor application.

 

GSP v11.1.2.0                                                         20-09-2011

--------------------------------------------------------------------------------

* Release

 

GSP v11.1.1.7                                                         20-09-2011

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Development of a multi-map turbine component for the propriatary NLR component

 library. Multiple turbine maps can be placed into a mapgrid. A(n) (off)design

 effect parameter determines which map is used.

 

GSP v11.1.1.6                                                         05-09-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Multiple pressure vessel components can now be placed onto the model window

 without being warned of multiple instances of the station 'vessel'. Now, the

 station ID can be set on the Output tab sheet to distinguish the multiple

 pressure vessels components in the output table.

* Various fixes and updates for the pressure vessel component.

 

GSP v11.1.1.5                                                         26-07-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Design point defining components and fields enabled for DP cases

 - The design point (DP) equation component can now also be added to a design

   run case (not just to a configuration anymore).

 - Map design point data can determined in DP cases also:

   * map design point input fields enabled in DP cases

   * positioning the design point shape in maps graphs enabled in DP cases

   * added map design properties for N and Beta

 Justification: all design point parameters like DP mass flows, pressure

 ratio's are (can be) defined in DP cases. So it makes full sense to adapt

 anything related (not affecting gas turbine configuration itself) to DP

 and OD (map design point parameters affect OD only). DP equations only affect

 DP parameters (typically PRdes, Wdes, Etades etc.) that can be user edited in

 DP cases already anyway.

 

GSP v11.1.1.4                                                         07-07-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Various fixes regarding exporting and importing data in numeric grids of

 control components (popupmenu's added or fixed).

 

GSP v11.1.1.3                                                         23-05-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Check added to ensure shaft nr./suffix added if fuel compression power

 accounting option active.

 

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Generating steady state series data using the loop case input controller now

 skips inactive input parameters when creating the series.

* Problem with case controlled parameter inactive error message in combustor

 at start of simulation after editing combustor.

 

 

New features

--------------------------------------------------------------------------------

* Added a dedicated EPR (Enine Pressure Ratio) controller

 

GSP v11.1.1.2                                                         20-05-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Auto reset OD input to DP after completion of DP case calculation now per

 default ACTIVE in order to prevent confusion after first OD run after a new

 model has been built.

* Initial compressor, fan and turbine OD user specified rotor speed (General

 tab sheet) now equal to design speed (initially 16540 rpm as in the TJET

 model/project).

 

GSP v11.1.1.1                                                         10-05-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* To facilitate easy registration a window will be shown the first time the

 application is run. Upon registering GSP the window will disappear. If

 registration details have been filled out in a prior GSP version, the window

 will not be shown after installing a newer version.

* Upon setting off-design input to design values the combustor waterinjection

 and fuel pump off-design data will be reset to design values.

 

Fixed

--------------------------------------------------------------------------------

* Mixer: In cases the button to set the static pressure ratio after a design

 calculation with selected first model option has not been pressed to update

 the model, differences in parameter output of design point and steady state

 calculation of the design power setting could be present. Added an internal

 mixer static pressure ratio parameter for the consistent calculation of the

 pressure ratio error equation.

 

 

GSP v11.1.1.0                                                         01-04-2011

--------------------------------------------------------------------------------

* Public release build (XE).

* This build includes registration! All customers that acquired a GSP 11 version

 are entitled to receive a software key to enable the registered version. To

 receive a license key please contact support@gspteam.com; please state your

 name and your company name. Note that without registering the program, changes

 of non standard components in projects cannot be saved!

 

GSP v11.1.0.6                                                         31-03-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Consistent setting of the "All curves in single graph" through the menu option

 and the option on the graph options general tab sheet ("Plot all curves in

 single graph"). Refreshing a graph with setting "All curves in single graph"

 will refresh the graph while maintaining this selected option.

* Setting Case control in Configurations improved (auto setting of Ref. values)

* Source code : TInpnumfld OnGetValue event added, e.g. to retrieve data from

 other field (e.g. Input1(des).) if Value (e.g. SchedValue) = Nan.

* Problem with saving previously stored models (breaking the saved xml code in

 the project file) has been fixed. This problem arose when GSP migrated to the

 new Delphi XE development environment. No releases have been issued yet from

 this development environment, so none of our customers are affected by this

 bug. The default encoding for GSP project/model files is "UTF-8", it is not

 advised to manually edit saved projects using a text editor!

* Mid iteration error in specific customer library suppressed, this message

 hindered the automatic calculation of a performance deck by requiring user

 interaction. Issue filed under 0000040.

 

Improvements

--------------------------------------------------------------------------------

* Changed internal version compare function for consistent checking of the

 project and model file version to the current GSP version.

 

GSP v11.1.0.5                                                         04-03-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in storing graph templates, carpet and single graph option were

 accidentally mixed up.

// by Wilfried Visser //

* Bug in Intercooler model fixed: wrong fluid (In2) inlet H calculation causing

 error in Q and fluid exit temperature.

* Bug reading Mapgrid maps for Power controllers from local stored maps in xml.

* Bug in fuel compression power calculation of user specified fuel composition.

* Better check of calculated expressions (no blanks allowed in parameter names).

* Now also embedded maps in map grid are copied with component copy-and-paste.

 

Improvements

--------------------------------------------------------------------------------

* Power code output now remains same as input, even if limiter has reduced

 actual power (overriding Power controller). Before, the power code was left 0

 with limiter override. Awaiting feedback from users which is best.

* Code adapted so that properties can be scheduled using determinate relation

 of power code that is case controlled. This is to enable simultaneous

 scheduling of T5 and N of a recuperated turboshaft engine (MTT Mk6).

 

GSP v11.1.0.4                                                         24-01-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

// by Wilfried Visser //

* Registration functionality improved

* New pop-up menu function in Model panel: Re-align all component to top left of

 model panel (in case somehow components have moved far from the model panel's

 origin (only visible after scrolling).

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

// Michel Verbist

* TUD GPA component library: problem with model reset (calcmode:=cmNone) fixed.

 

GSP v11.1.0.2                                                         19-01-2011

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Registration functionality implemented. As for now, only with still optional

 compiler directive "REGISTRATION".

* Improved clarity of the meaning of the Value for normalization of the limit

 parameter'. Limit parameter design value indicated if available.

 

GSP v11.1.0.1                                                         18-01-2011

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with project embedded turbine maps (PRmin data overwritten by PRmax)

 fixed.

* Formatting of map efficiency contour value labels improved.

* Small bug not properly scaling turbine corrected mass flow in the map when

 cooling flows are included in the effective turbine mass flow.

* Issue 0000039 (enforced security markings are not saved) is addressed. Upon

 selecting the 'Enforce security markings setting in new model' the modeller

 must select the security markings before a new model can be accessed. These

 markings are now saved correctly.

 

GSP v11.1.0.0                                                         11-01-2011

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* GSP will automatically check if updates are available. The check frequency

 can be set or disabled in the "Environment Options" window through the GSP

 main application.

* Popup menu added to the table grid of the "1-D Lookup Table Scheduler"

 controller which adds functionality to insert, add, and delete rows,

 paste/copy data from/to clipboard (also available in the Generic Schedule

 Control as the table scheduler is a descendant of the generic scheduler).

* Added functionality to quickly draw graphs from user predefined graph

 templates.

* Create and manage your own templates to quickly draw graphs from

 the GSP output table.

 

GSP v11.0.4.13                                                        04-01-2011

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

// by Wilfried Visser //

* Heat sink component extended with option to enforce initial transient

 temperature (ignoring initial steady-state). This is for warm engine start-up

 and accel/transient simulations.

* MTT/TUD 1D recuperator model: option to set transient initial internal wall

 temperature profile.

* Problem copy-pasting cases/configurations (invalid node names) fixed (only

 if allowed by environment settings).

* Problem with inactive Limiter component still resetting input component

 Control input value option (User specified/Free state) option fixed.

* Power control input in case controllers now properly named 'Power code'

 (not 'scheduled value' anymore).

* Improved code to assure project window always on visible desktop after

 opening.

* Project window always on top after opening from windows explorer.

* Problem double project save query when closing main form fixed.

* Security code tables (environment options) set to non-exclusive to allow

 multiple GSP instances running.

* Registration code functionality implemented (active under REGISTRATION

 compiler directive)

* Combustor exit FAR output name changed from 'RHFAR' (ReHeat) to 'FARexit'

 which is more appropriate for a generic combustor component model.

* Small bug not disabling fuel punp rho for compressible fuel option (cannot

 be adapted=calculated)

* Rho fuel added to Fuel flow data output in combustor component.

 

GSP v11.0.4.12                                                        01-11-2010

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Fuel compression calculation now always performed (so availabe for output)

 even if option inactive to account for it on shaft power. Option to account

 (or not account) for fuel temperature increase from tank temperature added.

* Deterioration dWc, dEta, dPR values now 0 in output if component Deteriorated

 switch is off (even if values <>0 in fields).

* Several small adaptations with SFdeter handling for adaptive modelling

* Etam (mechanical efficiency) added to output in turbine component.

* MTT 1D Recup model: bug in transient initial st.st. calculation of material

 temperatures fixed.

 

GSP v11.0.4.11                                                        01-11-2010

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* MTT library : 1D recuperator model internal iterations stability improved.

 

GSP v11.0.4.10                                                        12-10-2010

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Heat sink model improved: now consistent relation among conduction, convection

 and radiation heat flux corresponding to external wall temperature.

* MTT library : 1D recuperator model internal iterations stability improved.

* Stability of GetT function (T calculated from H) improved: T truncated at

 150-3000 K interval by using a Hmin(150) and Hmax(3000).

 

GSP v11.0.4.9                                                         28-09-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Pasting a dataset into the input parameter value grid for transient case type

 simulations in case control components.

* Clearing empty row in TUD GPA component when reading from text file but

 par name in tree cleared.

 

GSP v11.0.4.8                                                         27-08-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Improved drawing of the operating envelope boundary when the modeller edits

 the altitude and Mach grids manually.

 

GSP v11.0.4.7                                                         12-08-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Consistent setting of the carpet plot through the menu option and the option

 on the graph options carpet plot tab sheet.

* Problem with schedule equation (+derived map and table) controllers when

 controlled component not specified fixed.

 

Improvements

--------------------------------------------------------------------------------

* Added help item on the "The output name xxx already exits" warning in the help

 manual. This item can be quickly  accessed through a new help button in the

 

New features

--------------------------------------------------------------------------------

* 1D dynamic recuperator component model for transient thermal effects available

 in TUD/MTT component library.

 

GSP v11.0.4.6                                                         20-07-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in Generic Power Control Scheduler preventing being scheduled by a case

 control component.

* Bug in VGcontrol component (Variable geometry) causing AV / Stack overflow.

* Soot diameter in Multi Reactor model component scale value corrected to [nm]

 

New features

--------------------------------------------------------------------------------

* Added option to delete multiple breaks throught the output tables pop-up menu.

 

GSP v11.0.4.5                                                         23-06-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with failing to initialize OD states after DP iteration in St.St.

 cases with "Automatically initialize for OD calculation" General option off.

 

Improvements

--------------------------------------------------------------------------------

* Now also for single steady-state cases, 'Add break between initial Design

 and St.St.' option works (as with Steady-state series).

* Check in combustor fundamental pressure loss calculation on Mach number (if

 >1 than suggestion to increase burner duct area).

 

GSP v11.0.4.4                                                         11-05-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with copying output table to windows clipboard.

* Problem reverting to default project window docking layout.

* Problem with duct component trying to load pressure loss map when not

 using such a map.

* Bug in calculating heat sink external wall temperature.

* Bug case sensitivity string fields case and config inheritance

 (TModelform.NodesEqual function).

 

GSP v11.0.4.3                                                         11-01-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Issue 0000036 related to the mixer has been fixed, this includes The entry

 pressure conflict message now being displayed only for a converged simulation

 rather than for every iteration step, skipping of message when batch mode is

 selected (instead a comment in the output table will be shown), and PR static

 core over duct output parameter is now based on the actual value depending on

 the chosen model option, not just the value shown in the static pressure ratio

 input field.

* DP Equation controller scheduled parameter component property list now

 Design properties (was not OD).

 

Improvements

--------------------------------------------------------------------------------

* Pop-up added to the projects 'List docking windows' window to close/open more

 shown/hidden windows.

 

GSP v11.0.4.2                                                         11-01-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem saving and then opening model configurations in old .MDL format.

 

Improvements

--------------------------------------------------------------------------------

* Invisible components list not shown in separate window anymore but instead in

 docking panel in project window (next to Details panel tab). If tab is hidden

 use the project windows main menu 'view'->'list docking panels' option to

 double click the hidden invisible components list.

 

GSP v11.0.4.1                                                         08-01-2010

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Fixes for the Mantis bug report with ID 0000034 / 0000028; Crash on loading

 saved project with customer specific install effects component.

 

GSP v11.0.4.0                                                         21-12-2009

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* The calculated maximum design load has been added to the turbine component PTO

 option. When enabled the max. calculated design load (PTOmaxdes..) or torque

 (TQmaxdes..) will be added to the output table depending on the chosen "Design

 External load / PTO" (either Power or Torque). This allows quick manual

 iteration when designing a cycle without the need to open the component

 window.

 

Improvements

--------------------------------------------------------------------------------

* In addition to Mantis bug report 0000032: Cannot set Add. Outp. Component

 through Case Control Component: the unit input string is now used to display

 the unit string in the Case Control Component input parameter list.

* Unit added in equation schedulers expression input box for selected output

 parameter name. Now referencing output parameters in case controlers will

 display the correct name and unit. Note that for the advanced property

 selection interface no unit will be shown.

 

GSP v11.0.3.7                                                         11-12-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Mantis bug report 0000032: Cannot set Add. Outp. Component through Case

 Control Component. Now setting of a value is possible, e.g. useful when the

 add. output value is part of a calculation of another add. outp. parameter.

* Mantis bug report 0000029: Power controller map schedule graphs have incorrect

 captions for the X/Y axis. Captions corrected.

* Bugs when using recuperator/heat exchanger heat sink/soakage functions.

* Recuperator/heat exhanger heat sink/ ext. wall soakage and volume effects

 output can now be added to the output list.

* Problem using calculated expression format directly after using calculated

 expression value in carpet plot legend.

* Few other small bugs related to calculated expressions

* Few bugs related to copy/revert/move to parent and child operations.

* Problem with output of 2nd flow heat soakage/sink heat flux in heat exhanger

 recuperator components.

* Bug with volume dynamics (transient) effect calculation. This bug is inherited

 from the DYNGEN code of 1975 ! See TGasiocompform.CalcVdynamics procedure.

* Small problem with link bars when very short (more than 2 link icons trying

 to link each other simulatenously).

* Bug causing erroneous working of Limiter component (due to new additional call

 to CalcAdditionalOutput during iteration). Conversion switch added to control

 this.

 

Improvements

--------------------------------------------------------------------------------

* Mantis bug report 0000033: Inlet entry station label position not adjusted

 after the component has been rotated. All labels on the component icon (except

 the component number) are now repositioned when the component is rotated.

* After opening project, if graph panel selected, it now immediately shows data

 in case output table saved Project option active.

* If project was saved in Windows Minimized state (taskbar icon only), e.g.

 when prompted upon closing GSP, opening the project will put the projec

 window in Normal state again.

* The groupbox caption of the series (de-)activation on the general options

 input tab sheet is now correctly named.

* Heat transfer user data tables in Heat sink component and gas path components

 improved with more consistent read only setting and blue font coloring.

* Improved logging of Copy-to-parent action: now only a 'Changed by copy to

 parent (from child "node ID")' entry appears added to Parent Log and nothing

 in focused Config/Case log from where the copy-to-parent action was executed.

* New log items now added at top of Config/case Log data panel (so log data now

 sorted with date-time descending) for more convenience.

* Revert to parent Project tree command sets all data equal to parent, also in

 the Xml underlying data. Cannot be undone by Cancel since the editing

 operation is in the Project tree itself.

* Revert component to parent only done in local data (not in XML), can be undone

 since this is an operation in the model data.

* Additional Log data ('Changed by revert...) items added when Reverting to

 parent of Reverting component to parent.

* Additional Log data ('Changed by revert...) items added when Copying config,

 case or component to parent or moving component to childs. Log data of

 affected parent of child config/cases are affected only.

 parent of Reverting component to parent.

* Made heat sink and soakage effect tabsheets invisible in heat

 exchanger/recuperator components: interference with hx heat flux results in

 conflicting states: use duct components at entries and exits of flows instead

 to model heat sink/soakage effect. Note that the Dynamic HX/Recup.

* The Dynamic Heat Exchanger/Recuperator has been removed from the Multi In/Out

 component library. It's specific functionality (internal heat soak, volume

 dynamics) has been moved to the standard Heat exchanger recuperator component.

* Improved heat sink/soak, volume effect model in Duct and related components.

 An iteration loop has been added around the heat sink, soak and volume

 dynamics code to obtain a component exit temperature corresponding to the

 average in/out temperature used for heat transfer calculations.

 

New features

--------------------------------------------------------------------------------

* An option called "List Non-Visible Components" has been added to the model

 menu item of the project windows main toolbar. This option will list the

 non-visible components like shafts and bleed in/outflows.

* Copy component to parent option (if Copy to parent environment option active)

 added for copying component xml data to parent. Note that this immediately

 set the Project to modified mode since the underlaying XML data is modified

 directly and it cannot be undone by Cancel if exiting from the Config or Case.

 

GSP v11.0.3.6                                                         06-09-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem changing steady-state and transient map operating curve line style and

 other properties.

 

GSP v11.0.3.5                                                         24-08-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Incorrect JP-10 jet fuel combustor calculation problem.

 

New features

--------------------------------------------------------------------------------

* 1st order lag transfer function added to input controls for transient (in

 transient tab).

* Transfer function component added to Auxiliary component library for example

 to simulate simple sensor dynamics of parameters that are used in schedules.

 

GSP v11.0.3.4                                                         28-07-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Calculation aborting due to combustor OPR calculation in afterburner mode (OPR

 calculation for combustor in afterburner is not required).

 

Improvements

--------------------------------------------------------------------------------

* Reset OD to DP input command now in speed button toolbar. This command runs

 a DP and resets all single point input values to DP input values.

* Speed button for Model re-initialization improved to look like reset button.

* Option to use separate OD CV and CX factors in Exhaust nozzle, default = off

 meaning always DP values are used. This prevents the inadvertent difference

 between DP and OD CV and CX values after opening existing older version

 models.

* On-line help and user manual updated.

* Now fuel pump power specification in the combustor component made separate

 for DP and OD.

 

New features

--------------------------------------------------------------------------------

* 1st order lag transfer function added to input controls for transient (in

 transient tab).

 

GSP v11.0.3.3                                                         09-07-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Calculation of the exhaust area of Convergent-Divergent nozzles with enabled

 ideal (complete) expansion over the nozzle. Also Aexit/Athroat is

 recalculated.

 

Improvements

--------------------------------------------------------------------------------

* Con-di nozzle area (A9) and area ratio is now calculated for the 'Ideal con-di

 nozzle complete expansion' option.

* Calculation procedure for effect of exhaust nozzle component velocity ratio

 Cvjet improved: now Cvjet only affects exit flow conditions: throat in case

 of a convergent nozzle (when choked, Psthroat/exit will decrease with Cvjet

 decreasing, when unchoked, Vjet will decrease. For a con-di nozzle, divergent

 duct exit velocity will be corrected and Ps, Ts corrected if necessary.

* Separate OD CV and CX factors added in Standard Exhaust nozzle component.

* On-line help and user manual updated.

 

New features

--------------------------------------------------------------------------------

* From then general model options tab sheet the modeller can now quickly (re)set

 all deterioration data values to 0. Note that this differs from the button to

 de-activate the deterioration modes!

 

GSP v11.0.3.2                                                         15-06-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problems with case control of Exhaust nozzle parameters (controls

 disabled).

* Case control error message for disabled controls now only upon starting

 simulation (not during change of simulation type).

* Standard docking layouts optimized for minimal screen resolution 1024x768.

* Standard docking layout now with all custom libraries docked, no xml file used

 anymore for standard main form docking layout.

* Sample projects updated.

 

GSP v11.0.3.1                                                          8-06-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* LE Light Edition (LE) bug with storing model data.

* Problem overlapping controls in customer specific Inlet component.

* Problem adding Calculated column when popup menu accessed from existing

 calculated column.

 

Improvements

--------------------------------------------------------------------------------

* "DP input changed..." message dialog disabled for design and design series

 case types.

* Heat exchanger/recuperator effectiveness definition now fully enthalpy based:

 Effectiveness now equals actual heat transfered divided by maximum heat

 transfer Qactual/Qmax. Qmax is the heat that would be required to change the

 temperature in the flow with lowest W*Cp from the cold side inlet to the hot

 side inlet flow. See on-line help/manual for more information.

* Some problems with OD simulation of recuperated cycles solved.

* OPR calculation made more robust. However, the OPR calculation assumes the 1st

 combustor (and does not calculate OPR for combustors using AB maps).

 

New features

--------------------------------------------------------------------------------

* Option added to component popupmenu to quickly (de)activate control

 components (e.i. components having a "Active" checkbox on the "General" tab

 sheet).

* Project defaults section added to Environment options to set default values

 for Project options and other options in the Reference model configuration.

 Added: default for Calculate map scaling values in Design Point cases.

 

GSP v11.0.3.0                                                         15-04-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Few small visual GUI items.

 

GSP v11.0.2.10                                                        07-04-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Small bug in Combustor Ttexit iteration convergence failure reporting.

 

Improvements

--------------------------------------------------------------------------------

* Series/Transient input tables GUI improved: automatic initial point/time value

 for new apppended/inserted rows and data entry dialog pop-up.

* Combustor component Fuel compressor model improved: now static combustor inlet

 pressure is taken instead of total as the minimum pressure required to inject.

 An additional injection overpressure can be specified. If static combustor

 inlet pressure is not available (no area specified) total is taken instead.

* On line help/manual updated. Extended with section on Fuel pump/compressor.

 

GSP v11.0.2.9                                                         02-04-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug calculating Inlet design mass flow with MIL RR option and DP RR other

 than exactly 1 (unity).

* Map scale to model option in Map graph window now properly enabled/disabled.

* Bug detecting changes in NumFld's, causing failure to propagate changes.

* Bug causing improper reset to pre-edit values on Cancel in some cases.

 

Improvements

--------------------------------------------------------------------------------

* Map scaling can now be requested also in DP cases, in order to study the

 map scaling factors for examply, which are calculated during the DP

 calculations prior to OD runs. Check the "Calculate map scaling factors in

 Design Point cases" option in the Initialization tab sheet in the General

 options.

* Inlet MIL-E-5008B RR relation, (when selected) is scaled to design RR/PR.

 Warning/indication mechanism is added to notify user in case of scaling due

 to non-unity design RR.

* Ambient condition and standard MIL-E-5008B RR information box added in Inlet

 component.

* Case mode data set to Changed (causing save case prompt) upon DP calculation

 when "Auto reset OD input to DP after completion of DP case calculation"

 General | Initialization option set.

* Significant speed-up of Project tree browsing: was slowed down by rebuild of

 Details data tree and duplicate rebuilds which are now avoided. Speed now fast

 if Details tree not visible, slower if visible.

 

New features

--------------------------------------------------------------------------------

* Heat loss fraction input parameters added to compressor and turbine

 design tab sheets to control the fraction of total Heat soakage and

 Heat sink heat loss that is taken out/going into the process before expansion

 or compression and thereby affects turbine/compressor work.

 The rest of the heat flux (1-fraction) is taken out/added after expansion or

 compression. Up to this version, the fraction was fixed at 0.5.

 Note that the expansion/compression processes themselves are calcated as

 adiabatic "in between" the 2 heat flux stages.

* LE Light Edition (LE) released with limited functionality for free

 non-commercial use.

 

GSP v11.0.2.8                                                         21-03-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem OD splitter data editable in configuration.

* The design pressure ratio input box interaction with the inlet option

 MIL-E-5008B for a non-unity value of the design pressure ratio has been

 removed.

* Problem enabling/disabling bleed grid controls in gas path components.

* Problem with in gas path components Bleeds grid when adding row with flow or

 fraction column selected.

* Unit selection combo box now responds to user selection.

* Bug properly changing unit system and values accordingly (bug was present

 since numfld was given expression input capability).

* Output of condi ratio always 1 if convergent nozzle, even in deactivated

 con-di ratio field <>1.

* Problem with map grids (customer specific Installation loss and Power control

 components) with Map grid embedded in model xml.

* Bug error due to empty filename when saving operating point report text file.

* Problem with not accepting modified (in edit mode) data of the Flight/Ambient

 Conditions steady state (or transient) dialog.

* Bug in calculation of NGVexit total pressure in the single turbine stage

 component.

 

Improvements

--------------------------------------------------------------------------------

* If outputs are added from the "Flight/Ambient Conditions" tab of the central

 output form and the user selects OK, a confirmation to apply these settings

 will be displayed (similar to "Components" tab output options).

* Sample Project folder now ..\Sample Projects (was ..\Sample Models).

* Default Project folder now My Documents\GSP\Projects (was ..\Models).

* Install Effects components now stop simulation when component has no proper

 setup (rather than continuing the calculation with lots of message dialogs for

 users to confirm).

* Hint added to the q option (dynamic pressure) which equals 0.5*rho*Vt^2 or

 alternatively can be written as 0.5*Ps*gamma*M^2 in the Flight/Ambient input

 window.

* Renamed the q option of the "Operating Envelope Scheduler" to Dynamic Head,

 which is defined as the difference between the total and static pressure

 (Pt-Ps).

* Consistency check in gas path components Bleeds grid to prevent duplicate

 bleed numbers.

* "Auto reset off-design input to DP at DP case calculations"

 General | Initialization option no works also if OD and DP input types

 different in component such as combustor (DP input) and fuel control (OD

 input).

* Input control in map grids (customer specific Installation loss and Power

 control components): now map grids can only be edited in configurations.

* Map design point rectangle now also drawn in bitmap/emf exports via

 clipboards, if map is scaled to DP. If not scaled, map DP rectangle only

 shown in map graph window.

* On-line help/User Manual on maps extended/improved.

* Changed default report editor format to plain text to prevent rtf formatting

 tags in exported txt files.

 

GSP v11.0.2.7                                                         12-02-2009

--------------------------------------------------------------------------------

Adaptations

--------------------------------------------------------------------------------

* Turbine component moment of inertia and mechanical efficiency field now always

 editable; also in configurations.

 

Fixed

--------------------------------------------------------------------------------

* Problem inheriting embedded map data (and deleting xml data when reverting to

 file map storage option).

* Problem with calculating drag values of installation effects components.

* The dis- and enabled state of the reference area input field of the install

 effects component data form is now set by the enabled state of the "active"

 check box of the Afterbody Drag tab sheet.

 

GSP v11.0.2.6                                                         23-01-2009

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Operating envelope component Control component combobox now only populated

 with compatible components (input components or schedule components with

 transient input tables such as Power control). This means all Control and

 Power library controls are added to the drop down list.

* Code: SetComboBoxList_with_CnameList_and_Class method now has AddToList switch

       to add to component select combobox list instead of replace all items.

* Moved the property control component to the Controls library (from the

 Scheduling library) for better consistency.

* Changed the way Nc and Tcorr of shaft objects are calculation:

 Now the shaft corrected speed is defined as the shaft rotor speed corrected

 to ISA using the entry conditions of the FIRST turbomachinery component in

 the gas path on the shaft.

* Improved captions and on-line help explanation for the Bleed flow scheduler

 control component.

* Default 'hs' component ID string for heat sink component (was still empty).

 

Fixed

--------------------------------------------------------------------------------

* Problem with running models having a customer specific intake component (fixed

 initialization of maps).

* Map filename not shown in Case/Config Details tab sheet problem.

* Problems propagating data from map frames and confirming propagation.

* Problem Numeric field combobox not populated in Case control components.

 

GSP v11.0.2.5                                                         22-01-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with reset of internal environment option values being reset after

 Cancel.

 

Improvements

--------------------------------------------------------------------------------

* Option to truncate turbomachnery component map eta output to 0 when negative

 values are read (default off for compressors, default on for turbines).

 

GSP v11.0.2.4                                                         15-01-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Global values DSpill and DAftend are now correctly displayed, or summed when

 multiple install effect components are used.

* Customer specific spill drag maps can be stored local.

* Fixed customer specific installation effects component reporting "Outp.Error"

 in remark column of the output table while in fact no error had occurred.

* "Rogue text" (visible text labels that should not be visible) has been made

 invisible for customer specific operating envelope scheduler and the customer

 specific installation effects component.

 

Improvements

--------------------------------------------------------------------------------

* On-line help file updated.

* Customer specific power controller scale check mark for scaling maps is now

 default checked (used maps are now default unscaled!).

* A separate input field for specifying the reference area (S) of the afterbody

 drag calculation formula of the customer specific Installation effects

 component is added.

 

GSP v11.0.2.3                                                         05-01-2009

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug with giocomp's AddBleeds routine not returning true.

* Bug in A8 calculation in customer specific Exhaust nozzle component.

 

Improvements

--------------------------------------------------------------------------------

* "Update input to DP" buttons in component window Design tab sheets (to uUpdate

 inactive input field values to last calculated Design Point if available) now

 always active (also in OD cases). Applies to Combustor, Nozzle and Mixer

 components.

 

GSP v11.0.2.2                                                         18-12-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Non critical Nozzle Pressure ratio warning in customer specific Installeffects

 unit fixed. The third option used second option combobox instead of the third

 to check whether the user had entered input.

* Loading of embedded afterbody maps in map grid in customer specific

 installation effects component.

* Spurious warning message 'Nozzle Pressure Ratio "output parameter" has not

 been set!' in customer specific installation effects component.

* Customer specific installation effects component parameter name Daftbody has

 been changed to the global parameter name Dafterbody.

 

Improvements

--------------------------------------------------------------------------------

* On-line help updated.

* Customer specific On-line help updated.

* Customer specific reheat component BPR boundaries are now exactly conform the

 Fortran implementation (BPR <= 0.4; 0.4 < BPR < 0.6; BPR >= 0.6).

* Customer specific flight envelope scheduler output parameter Daftbody renamed

 to Dafterbody and installed option is now default for generating report.

* Default customer specific flight envelope component specific output option

 changed from uninstalled to installed.

* Customer specific installation effects map grid extrapolation updated.

 

GSP v11.0.2.1                                                         17-12-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem AV after when canceling Insert new or paste case or configuration

 in project tree.

* Problem with AV after deleting newly added case or config in project tree.

* Customer specific component library only: Problem in customer specific Exhaust

 Nozzle component with "CD design from NPR schedule" option active OD throat

 geometric area not properly taken from DP value.

 

GSP v11.0.2.0                                                         05-12-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem AV after when canceling Insert new or paste case or configuration

 in project tree.

 

GSP v11.0.1.39                                                        28-11-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem no default Splitter component ID string.

* Customer specific inlet fixes: Ancestor inlet options are now functional

 again, output parameter (WCout_i/A1) for output option "oper.curve pars" now

 available in data output table, design point shape invisible for customer

 specific specific map option, and map axis captions conform map option.

* Problem copying components with embedded maps (map not loaded error).

* Problem deselecting from multiple component selection using Shft-Left mouse.

 

New features

--------------------------------------------------------------------------------

* Hide all library windows of the GSP main window (View -> Hide all libraries)

 

GSP v11.0.1.38                                                        27-11-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problems with manual scaling of map graph: graph fails to adopt decimals for

 axes and contour labels.

* Bug not copying radiogroup and combobox field itemindexes with copying

 components.

* Ctrl+Shift+O shortcut called from ReferenceModel node now names the inserted

 configuration node.

* Problems copying combobox, radiogroup and numfield data during component copy.

* Problems copying embedded (local) maps during component copy.

* Problem with empty link nodes in Case/Config details tree.

* Problem unchecking Series/Transient input 'Active' checking when controlled

 by power control during simulation.

* Customer specific inlet bug fix, and generally improved for 5th Q2c/A1 map

 option.

* With the ideal con-di expansion option, now throat area is calculated

 correctly again, and all shock parameters are set to 0.

 

Improvements

--------------------------------------------------------------------------------

* Paste item added to modelpanel pop-up menu.

* Paste and copy items in modelpanel pop-up menu disabled when nothing to copy

 or paste.

* Single click opening of component model data entry window now disabled;

 avoiding problems with second click inadvertently selecting options in

 window.

 Double-click always directly opens, also if not selected (except when

 multiple comps selected: then a double click first selects the single comp).

* Spaces in node captions (i.e. node names) automatically replaced by '_' to

 comply to XML rules and avoid errors during node copying/pasting.

* Mixer component now also equipped with Update to DP button instead of auto

 reset to DP of disable field values, for correct change propagation.

* Change propagation mechanism depending on Mixer model option implemented.

* Project tree browsing speed increased.

* Stability of static flow properties calculation at very low temperatures

 (around 200 K, e.g. inlet static flow properties at high altitude/low speed).

* Exhaust nozzle improved. With Geometric areas design options area control is

 applied on geometric area before CD is applies and also cond-di area

 ratio is applied on geometric areas before CD.

* Customer specific Exhaust nozzle option added to use CD and CV schedule for DP

 also.

* Better error reporting after exceptions with the exhaust nozzle expansion

 calculation.

* On-line help and user manual updated.

* Customer specific On-line help and user manual updated.

 

Adaptations

--------------------------------------------------------------------------------

* 'Auto reset off-design input to DP at DP case calculations' General

 Initialization option now default OFF.

* OL-help and manual updated.

* Design CX and CV input fields in customer specific Exhaust nozzle component

 made invisible (not used by modeler).

 

New features

--------------------------------------------------------------------------------

* Paste item in model panel to paste copied components.

 

Known issues

--------------------------------------------------------------------------------

* Problem copying embedded (local) maps defined in map grids.

 

GSP v11.0.1.37                                                        04-11-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem initializing security marking files from new Window user accounts.

* Problem unintented re-initializing security marking files when initializing

 in other Environment option tab sheets.

* Problem setting control component transient/series input row if only single

 data row to single input field value upon enter.

 

Improvements

--------------------------------------------------------------------------------

* Indication whether 'Account for fuel pump/compressor power' option in Fuel

 pump tab sheet is checked in Fuel and Design fuel tab sheets. This is to

 notify the user that the fuel temperature is only the temperature before

 compression up to injection pressure, where the temperature is higher for

 compressible fuel. It affects the combustor energy balance with the addition

 of the fuel pump power.

* On line help and user manual updated.

* Fan stall margin (separate for core and duct map) now calculated for output.

* Unused transient data check now only if more than one data row specified (to

 avoid error messages coming from single row data set to single input field

 value per default).

 

GSP v11.0.1.36                                                        03-11-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with enabling / disabling 'User specified'/'Free state' options in

 Input control components with 2 inputs.

* Fixed inserting of case nodes when childs contain a config node.

 

Improvements

--------------------------------------------------------------------------------

* Exhaust nozzle control Model options (Only throat or Con-di ratio control)

 now only enabled in configurations and DP cases. This is because Con-di ratio

 may represent a free state which is only to be determined in configs or DP.

 Par names/captions made more consistent.

* On-line help system and user manual updated.

 

Adaptations

--------------------------------------------------------------------------------

* The Heat sink component has been moved to the Auxiliary components library.

 

GSP v11.0.1.35                                                        15-10-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Reset OD to DP input button in Ambient/Flight conditions.

* Reset OD to DP command in Model menu (recalculates DP and sets all OD input to

 DP input value).

* Scale factor values in Map graph panel status bar if scaled to DP.

 

Example projects

--------------------------------------------------------------------------------

* PW4056 turbofan engine project for analyzing performance throughout flight

 envelope and generating performance deck IMPROVED

 

Fixed

--------------------------------------------------------------------------------

* Bug in calculation of heatsink Q on design point in turbine component.

* Problem heat sink not specified error when specifying direct Q (no need for

 heat sink in giocomp heat sink row).

* Bug causing 'cannot focus ... window' after changing case type and auto popup

 of report editor.

* Problems with Linked checking of Deleted components with parents.

* Problems with Governor control (inadvertent setting of PLAdes to Wfdes).

* Problem with Graph panel copy menu appearing on copied graph bitmap.

* Problem with zooming/unzooming map graphs.

* Not updating unit of Wc in scaled turbine map.

 

Improvements

--------------------------------------------------------------------------------

* Checking whether components can be moved to child cases/configs according to

 case management rules (depeding on case management environment settings). This

 for example prevents illegal config components moving to child cases.

* Checking whether components of which only single instances are allowed per

 model config are not present in child cases/configs when adding these

 components. This already worked for the focused config or case. Also works on

 groups of which only one instance is allowed such as case management

 components.

* Now component data entry window opens directly upon double clicking the

 component icon.

* Change propagation now also works for all case/cfg options and ambient flight

 conditions.

 

GSP v11.0.1.34                                                        01-10-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Heat sink model extended with radiation using user specified emissivity eps

 in wall-to-ambient radiation model (Tw^4-Ta^4)*Cstefanboltzmann*eps. See

 Heat sink tab sheets in gas path components and heat sink componet external

 heat transfer. Wall temperature for radiation is calculated from heat sink

 wall thickness, k and Q.

* Insert Case or Config function in Project tree pop-up-menu for inserting

 an extra case or (if selected is config) configuration layer between selected

 case/config and its childs.

* Function to move component down to next level of child configs and cases. Here

 the component xml data is merged/copied to child config/case and then deleted

 from current case. The action is confirmed after saving the config/case. This

 is convenient to reorganize project tree, move down illegal case controls from

 configs (GSP 10 upgraded models for example), for example in combination with

 the 'Insert Case or Config function' described above.

 Access this function with component pop-up menu item 'Move component to child

 configs/cases'.

* Inter-heat sink heat transfer function added : in heat sink 'External heat

 transfer' tab sheet, a table for specifying heat transfer coefficients [W/K]

 among heat sinks is added.

* Problem with error in Heat sink External heat transfer when no shaft specified

 fixed: without a shaft: Reynolds will be 0 (no rotation to enhance heat

 transfer, velocity c=0) so use a Nusselt relation without Re.

 

Example projects

--------------------------------------------------------------------------------

* PW4056 turbofan engine project for analyzing performance throughout flight

 envelope and generating performance deck

 

Fixed

--------------------------------------------------------------------------------

* Bug from .31 release preventing Calculated expressions output in operating

 point report.

* Crash upon opening an (.mdl) model with a case component inside when a dialog

 is presented to delete the component and answered by yes. On selecting yes,

 GSP will now delete the component.

* Helpfiles can be opened from combustor and installation effects component, or

 derivatives from these components (e.g. customer specific).

* (Un)hiding of the series tab sheet of control components has been improved

 when multiple input parameters are available to the modeler. When setting an

 input parameter to free-state, the input column on the series tab will be

 hidden.

* Bug in calculation of heat sink flow in combustor component with TIT as input.

* Problem with using multiple constant expression components.

* Bug causing improper scaling of expression results in numeric input fields

 (when using Constant expressions for example).

* Problem deleting unused transient data from Flight/Ambient conditions (single

 transient row should not be reset to zeroes for Flight/Amb conditons)

 

Known issues (issues identified and listed to be addressed later)

--------------------------------------------------------------------------------

* Slow program speed when opening large configs/cases.

* When opening multiple large model configurations (many components), GSP may

 exceed Windows max USER OBJECTS setting (usually 10,000) resulting in a

 'Not enough space to complete this command' error. Avoid this error by not

 opening multiple very large projects (that is : projects with models including

 large numbers of components). The 10,000 limit can be increased somewhat by

 the user in the Windows registry but this is not recommended.

 

GSP v11.0.1.33                                                        27-09-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Option to user specify Q in gas path component Heat Sink grid (instead of

 using user specified Nusselt). This can be done either coupled to a Heat sink

 component (involving equation, so then other component(s) must be connected

 as well to compensate for the user specified Q according to equation) or

 with Heat sink component specified for directly adding or extracting heat to/

 from the process according to component dependent heat sink/flux/loss model.

 

Fixed

--------------------------------------------------------------------------------

* Problem with input fields format of scaled parameter types (i.e. inadvertent

 round of of 2nd decimal when using g instead of kg).

* Problem calculating calculated columns with other (prior) calculated columns

 in the expression.

* Problem in .32 release with initializing design fuel flow for OD calculation

 with Wf as state.

* Problem reverting central output options fixed: now default component group

 is 'All gas path components'.

* Problem reverting graph X axes settings back to initial default.

* Problem reverting graph line style settings back to initial default.

* Problem access violation in Legend and Carpet tab sheets of graph settings

 window when refreshing parameter lists.

* Problem reverting environment security settings.

* Problem in 11.0.1.32 with AB Combustor maps.

* Issues with Operating Envelop Scheduler where unitsystem of the referenced

 component (Flight/Ambient Conditions) differed from the Unit System setting of

 the Operating Envelop Scheduler.

* Enabled some ancestor numeric fields for customer specific afterburner and

 customer specific exhaust nozzle.

* Problem Map not scaled error after opening map component during OD simulation

 session.

* Problems with showing Fan duct map in cases.

* Problems drawing operating lines in Fan map.

* Bug introduced in 11.0.1.32 causing false calculation of DP fan duct mass

 flow.

* Problem Mixer OD calculation with options core/duct entry and static pressure

 ratio.

* Problem DP calculation when using AB combustor efficiency maps.

 

Improvements

--------------------------------------------------------------------------------

* Thread safe string-float conversion. Now GSP uses separate internal locale

 settings (including decimal separator) and Windows separator may be a ','.

 Also no problems anymore when Windows changes global decimal separator back to

 locale settings (Vista, TU Delft Windows installations etc.).

* Parameter/field data nodes now sorted in Config/Case details tree.

* Several input and output parameter field names/display captions made more

 clear (Config/Case details tree, output tables).

* Wrapping of library toolbars (these hold the actual components in the library)

 has been improved.

* Added extra options to the Flight/Ambient conditions to toggle breaks.

* Unit System selection for Flight/Ambient conditions now can be set in cases.

* Heat sink grid in gas path components improved: reflecting units in 2nd title

 row.

* With Enforce Security Marking Environment option on, Cancel button now enabled

 and will Abort New model if pressed (and no markings) added. Ok button only

 enables after Security markings added or selected from comboboxes.

 

GSP v11.0.1.32                                                        23-07-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* "Revert All" button added to most option/setting dialogs to enable

 user to revert ALL setting (in all tab sheets of window) to installation/

 new model/project default. Can be canceled using Cancel button.

* Reset all settings commance added to Case/config options menu to reset all

 case/config related settings.

* No OD Map checking and map scaling calculations (require map initialization)

 anymore during DP case type simulations. This means for DP cases no OD map

 specification is required.

 

Fixed

--------------------------------------------------------------------------------

* Problem with invalid par. error message from Case controllers that are set

 to Inactive.

* Series/Transient Tabs become visible problem in scheduler/control components

 that do not have series inputs (table, equation, limiter, additional output

 control components).

* Problems using property control schedules in schedule control components.

* Several problem Reverting to default action in Environment settings and in

 Graph settings.

* Problem with duplicate outputs from Fan scaling factors.

* Problem checking deleted components (CheckComponent procedure).

* Fixed interpolation in Installation Effects component. Now correct values for

 CdAft are calculated from the map.

* Fixed error on deleting rows in the 'Output Table and Graph' table (this table

 and graph can be opened from the GSP main window using the Table button).

* Problem with different nr or errors and states error message from Limiter

 control upon model initialization.

* Problem setting design fuel flow in fuel flow controller when set as free

 state.

* Problem with calculation of Cp, Gamma for intercooler component (Cp and Gamma

 should be zero for liquid).

 

Improvements

--------------------------------------------------------------------------------

* Handling of schedule controller property scheduling both OD and DP.

* Aborting scheduled series calculation from singular Matrix error.

* Improved map and map scaling consistency checking and error reporting prior

 to both OD initial DP calculations and OD calculations.

* On-line help updated.

* Added caption bar to the table and graph panel of the 'Output Table and Graph'

 window to facilitate drag and drop of the panels to support a user defined

 layout.

* SM option added to the Output Options/Component interface.

 

Adaptations

--------------------------------------------------------------------------------

* Thrust and Rotor speed control components Active checkbox now disabled in

 cases (since enabling/disabling of corresponding states also is disabled).

* Power control components Active checkbox now disabled in cases

 (since activating/deactivating requires reset of equations).

* With a Scheduler control in a Case, only with property as state or determinate

 property relation the active checkbox is enabled.

* The schedules parameter groupbox is be disabled in cases since it affects the

 equation directly.

* Project tree docking panel caption is now 'Project', Project tree root node

 shows project name specified in project options (instead of in 2nd column).

* Background cream color for 2nd case mode column in project tree.

 

GSP v11.0.1.31                                                        17-07-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Revert to GSP default button added to most option/setting dialogs to enable

 user to revert setting to installation/new model/project default. Visible

 controls/settings are reset only (only on visible tab sheets). Can be

 canceled using Cancel button.

* Top left titles now in steady-state and transient output graphs changed to

 Nearest Configuration ID and Case ID with underneath project file name.

* General option "Reinitialize model on case type change" added (Initialization

 tab sheet) to enforce a model reinitialization (reset states/errors, require

 recalc of design point) after changing case type. Default is ON.

* Copy model panel bitmap to clipboard function (Model menu & popupmenu) for

 rapid copying and pasting of model config image to documents.

 

Fixed

--------------------------------------------------------------------------------

* Problem with disabling (setting to 'invalid') of calculated column expressions

 after expression cannot be calculated due to divison by zero or other math

 exception. Now only disabling if Parser error (syntax or par. not found).

* Problems with scaling of power control component schedule maps.

* Problems with indication of calculated columns (using yellow background).

* Few problems with copying pasting components and checking whether allowed

 by case management rules.

* Convergence problem in recuperator iteration towards user specified design

 point effectiveness.

* Problem with handling Deleted components in inherited child cases.

 

Improvements

--------------------------------------------------------------------------------

* Now also blue font color used to indicated calculated columns.

* Improved handling of Project options saved output table names. Default table

 directory is MyDocuments\GSP\Tables. A tablefilename without path is stored

 in this directory.

 

GSP v11.0.1.30                                                        03-07-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Nuserspec (User specified OD rotor speed rpm) added as property in

 turbomachinery components.

 

Fixed

--------------------------------------------------------------------------------

* Case control parameter lists and list names updated and improved.

* Problem VEN (variable exhaust nozzle) control component con-di ratio input

 option (user spec of free state) invisible.

* Heat sink component select combobox height not matching grid.

* Combustor pressure loss map control GUI problem.

* Problem copy-pasting case nodes outside parent with cfg only components

 without ancestor data.

* Bug causing small inconsistency with DP recuperator effectiveness calculation.

* Small bug with visiblity of DP user defined fuel properties.

* Bug not prompting save after copy to parent/revert to parent actions.

* Problem regenerate series prompt upon Ok click after (de)activating a

 particular loop.

* Problem not reverting to initial case type when canceling 'Delete unused

 transient input' from Flight/Ambient conditions.

* Bug causing failure autoscaling Y axis in numeric grids graphs (1D Table

 sched components etc.).

 

Improvements

--------------------------------------------------------------------------------

* Turbomachinery component model options for speed and power. Third option now

 always is "Speed determined by shaft" (equivalent to External control), also

 for the turbine. For the turbine, this options replaces the "Power balance

 at rotor speed" option. A separate "Add power balance equation" option is

 added to allow the user to add a power balance equation for 2nd and 3rd model

 options (user or shaft specified speeds), that must of course be accompanied

 by an extra state variable such as OD fuel flow.

 With the "Free state rotor speed" option the power balance equation is added

 always independently of the "Add power balance equation" option.

* Copy to parent option/action (project tree node pop-up menu) improved and now

 depending on Environmental Case management options "Allow copy case or config

 to parent" and "Allow copy case to parent configuration".

* Warning added that other childs of parent will be affected through inheritance

 with Copy to parent action.

 

GSP v11.0.1.29                                                        22-06-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Project name field in Project options for short description of project shown

 in project tree next to Project root node and in project tree docking panel

 caption. To be used later in other output and documentation.

* Advanced tabsheet added to project options

* "Show advanced model equation controls options in components" advanced project

 option added for 'Always create state/error variable' and 'Corresponding state

 nr. for deactivation' options/fields.

 

Fixed

--------------------------------------------------------------------------------

* Reopen table (option from the main window) now loads the requested table and

 shows the table in a separate window (similar to the open table option).

* Problem with Exhaust component exit station (usually station 8 and 9) output.

* Problem with Inlet component entry station (usually station 1) output.

* Problem with table formats after changing project options (output table file

 names).

 

GSP v11.0.1.28                                                        06-06-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Combustor component Afterburner Efficiency - FAR map now takes internally

 calculated FAR stoichiometric as the reference (afterburner design) point to

 scale the map (instead of FARdesign which is the actual FAR at combustor exit

 in GSP DP which in turn is MIL DRY FAR when the DP is at MIL DRY.

 So now map input is FAR / FARstoich.

 

* Convergence monitor now with information on the error variables: component

 and error variable description.

* Convergence monitor extended with states underneath the error bars.

 

Fixed

--------------------------------------------------------------------------------

* Problems with scaling maps to models when deviating units (e.g. g/s for map

 mass flows are used).

* No Project save prompt after changing case type problem.

* Bug causing endless loop when trying to delete inconsistent case control

 in configs.

* Component hint not properly showing with mouse cursor above component nr.

* Problem with false indication of successful DP calculation prior to OD leading

 to invalid OD.

 

Improvements

--------------------------------------------------------------------------------

* Selected model components can now be moved with the cursor keys with a

 stepsize of 10 pixels by simultaneously pressing CTRL, SHIFT and the cursor

 key (arrow up, down, left or right). Using the cursor keys only, components

 are moved 1 pixel per pressed keystroke.  

* Central output/System performance setting through the Output options windows

 has been restructured. A new tab sheet called "Output parametrs" has been

 added. From this tab modelers can (generically) clear output options, or

 (un)set output options for Components (former Central component output tab

 sheet), system performance, and now also options for Flight/Ambient

 conditions.

* Setting the shaft specific output (Nrpm and N%) now effectively sets the

 output options for only 1 off all turbomachinary components attached to a

 shaft.

* Improved the shaft output parameter setting when using the "central" output

* Improved case control parameter selection lists:

 - only relevant parameters in list

 - empty list entries removed

 - line break characters removed

* Now also for Flight/Ambient conditions the unused series/transient input data

 check for deletion implemented.

* Hint warning of moved child components now showing during dragging of

 component over model panel. HintHidePause now set to 100s.

* Visual passive indication of overlapping components in model panel: borders

 turning red with overlapping component.

* Calculation initializations checks overlap and aborts if overlap detected.  

* Dragging components remain on top while overlapping others.

* Improved/corrected state/error info output for heat exchangers/recuperators

 and intercooler components.

 

Adaptations

--------------------------------------------------------------------------------

* Delete Unused TransInputs Before Save environment option removed. Now with

 just Delete Unused TransInputs option, unused transient inputs are deleted

 as soon as detected (as if old before save opiont always on).

* "Copy case or config to parent" and "Copy case to parent config" environment

 case control options added.

 

GSP v11.0.1.27                                                        23-05-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Warning when Component or Link icons are overlapping in Model panel after

 loading of a config or case.

* Component name added to Linkbar hint.

 

Fixed

--------------------------------------------------------------------------------

* Bug not saving DeleteUnusedTransientInputs and

 DeleteUnusedTransInputsBeforeSave environment options.

* Bug with saving component locations on model panel (ScrollBox) with components

 scrolled out beyond left or top limit, resulting in negative location data.

* Bug with adding liquid water to total mass flow in inlet component.

 

Improvements

--------------------------------------------------------------------------------

* Hint warning on components being moved in child configs/cases now showing

 directly and when moving mouse over selected components.

* Warning messages when loading unrecognized XML data from older model versions

 improved.

* Better checking of shaft initialization (shaft id not specified error now

 exits calculation).

* Gamma for 2-phase flow now properly calculated excluding Cp of liquid water.

* Output parameter names now maintained in incomplete configurations (unlinked

 components) for selection in equation controllers.

 

Adaptations

--------------------------------------------------------------------------------

* Default map interpolation method changed from quadratic to linear. This is to

 make sure imported GSP 10 and earlier version models (only linear

 interpolation) show the same result as before.

 

GSP v11.0.1.26                                                        22-05-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Central component output functionality now correctly shows the checkbox

 markings on changing component selection box (for options

 'All gas path components' and 'All turbo components').

* Bug causing AV in Details tree OnGetText code.

* Problems with CD_exit output in Exhaust nozzle and customer specific Exhaust

 nozzle components.

 

Improvements

--------------------------------------------------------------------------------

* Only controls passing 'InputControlVisible' check, left visible in Case/Config

 Details tree view. Invisible internal parameters now invisible.

* Some input fields parameter ID strings already updated (reflected in selection

 lists, Details tree view, messages etc.).

* Check if input fields depending on other fields that have been changed (Input

 type Radio group option fields such as in Combustor and Exhaust nozzle

 component) need to be reset in child cases/configs.

* Mixer updated to have the numeric input fields enabled and disabled correctly

 based on case type or configuration.

* "External Vane/Blade angle control" option in turbomachinery components

 enabled in Configs only.

 

Adaptations

--------------------------------------------------------------------------------

* Now Detail tree also shows all ReferenceModel data when ReferenceMode data

 selected.

* Input control single point OD input fields (in General tab sheet) now disabled

 if Case controlled (and case control input active) or if transient input

 active and in series/transient mode. OD input control input fields were

 already inactive if in DP mode.

 

GSP v11.0.1.25                                                        15-05-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug in Variable Geometry (VG) control component (during object create).

 

Improvements

--------------------------------------------------------------------------------

* Now also Rotation of Configuration and linked components in Cases inhibited

 (as also Moving is then inhibited), and notified by Hint.

* Clicking cancel button when "Delete unused series/transient data" dialog

 pops up after changing or selecting case type, now reverts selected case type

 back to original (series or transient) case type.

* When adding case control and Environment option set, "Delete unused

 series/transient data" dialog pops up to delete unused series/transient data

 in the case. In child cases, Deletion will be done through change propagation

 mechanism.

* When Selecting Case type after adding new case, and Environment option set,

 "Delete unused series/transient data" dialog pops up to delete unused

 series/transient data in the case. In child cases, Deletion will be done

 through change propagation mechanism.

* Case / configuration consistency check mechanism that executes upon loading

 case of config and before saving (notifies on unused series data or illegal

 component types).

 

Adaptations

--------------------------------------------------------------------------------

* Abort button removed from Change propagation into child configs and cases

 Confirmation dialog. Reason is that Aborting propation process half-way may

 result in leaving user unclear what is propagated and what not. May be added

 later again.

* STOVL component library disabled until components tested (later release).

* Rotor speed and thrust control Power control components can now be added to

 configurations only.

 

GSP v11.0.1.24                                                        14-05-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Warning generated when starting to move components that have been moved or

 rotated in child configs or cases. This to avoid messing up component

 linking in child configurations.

 

Fixed

--------------------------------------------------------------------------------

* Bug with case control input parameter list parameter naming.

* 'Allow Copy Paste Nodes Outside Parent CheckBox' Environment option not saved

 to registry bug.

 

Adaptations

--------------------------------------------------------------------------------

* Bleed control and Bleed schedule can now be added to both cases and configs.

 Unlinked control components in the Controls library are both case and config;

 Linked Controls component are Config only.

 

GSP v11.0.1.23                                                        11-05-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Small bug not cleaning up empty xml nodes after saving case or config.

 

Improvements

--------------------------------------------------------------------------------

* Improved Detail case/config data tree view, showing changes of case/config

 relative to parent. Now with actual ID strings instead of code parameter names

 to identify parameter names that are different from the parent case or

 configuration.

 Also units added and Input grid data now shown up to 120 characters. Detail

 tree view not editable: instead use Dbl Click to access data entry window.

* Storage of numeric field data improved: now xml value is stored in format

 equal to data entry field format, so it appears the same in the detail tree

 view. This means that for the detail tree to reset to show adapted fields

 only, cases and configurations need to be (re)saved.

* Fly-over hints added to expression input boxes saying that decimal points/dots

 in field/parameter names must be replaced by the $ character to distinguish

 from actual decimal points in numeric constants.

* Captions and field identifiers in Flight/Ambient conditions window.

* Now selectable box for mass% in Flight/Ambient conditions window.

 

Adaptations

--------------------------------------------------------------------------------

* The behaviour of copying and pasting case and config nodes has changed: now

 only the changes of a case or config relative to the parent are copied and

 pasted, resulting in a new node inheriting all from the new parent except the

 changes in the original relative to the original parent.

 When components do not exist in the new parent, the component is created and

 adapted with the original change data only; the rest is remaining on the

 initial component data defaults (as there is nothing to inherit from).

 

GSP v11.0.1.22                                                         9-05-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Serious Bug mixing up component ID's while reading from XML.

* Problem disabled component name and ID fields in Additional Output par.

 component.

 

Improvements

--------------------------------------------------------------------------------

* Model data adaptations due to version change/update are not confirmed at case

 or config level anymore. Only Save prompt when closing project.

* Component name uniqueness when adding/copying new components now also

 automatically enforced across inheritance tree; making sure a new component

 will not have an initial name idential to a component added in a child case

 or config.

 

Adaptations

--------------------------------------------------------------------------------

*

 

GSP v11.0.1.21                                                        05-05-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug not storing calculation order after changed by mouse right-click pop-up.

* Access violation error when pressing Edit button in Output options, Central

 Component Output tabsheet, with All gas path components/turbo components

 selected.

* Useless 'Design point input changed !' warning while in Configurations

 removed.

* Upgrade changes during loading of older version xml models not being saved

 problem.

 

Improvements

--------------------------------------------------------------------------------

* Some error messaging from Additional Calculation proc.s: now with Component

 identification and Abort button to abort if in iteration.

* Intercept exception when reading invalid project docking style names.

* Warnings during upgrading from older model versions improved.

* Input field select lists for Flight/Ambient conditions in Case and other

 controls components now consistent with other component input select lists

 (depeding on case, env. options, valid, enabled etc.).

 

Adaptations

--------------------------------------------------------------------------------

*

 

GSP v11.0.1.20                                                        27-04-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Change propagation warnings of input options and corresponding input values

 now coupled: corresponding input value of new input option will always be

 propagated down the inheritance tree (Combustor and Exhaust nozzle

 components).

 

Fixed

--------------------------------------------------------------------------------

* Bug failing restore of NumFld values after Cancel click in data entry forms

 (NumInpWV unit).

 

Improvements

--------------------------------------------------------------------------------

* Warning when changing Control input that is also controlled by Operating

 envelope scheduler.

* Change propagation warnings of input options and corresponding input values

 now coupled: corresponding input value of new input option will always be

 propagated down the inheritance tree (Combustor and Exhaust nozzle

 components).

 

Adaptations

--------------------------------------------------------------------------------

* Change propagation into lower inheritance level configs and cases now only

 happens after a Yes or Yes to all. With No, NoToAll the recursion from that

 inheritance tree branch is terminated.

* No to all answer in the Change propagation confirmation dialog box, now stops

 all change propagation, also on the same config/case level.

 

GSP v11.0.1.19                                                        19-04-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Small bug preventing '<no map loaded>' indication in map control frame.

* Bug leaving Model progress box open after simulation error fixed.

* Problem with saving calculation order: now modified order is properly restored

 after model loading according to Calc.Nr.

* Bug not setting Model input changed status after deleting hidden Series/

 Transient data.

* Bug causing red font color all over Loop control form.

* Bug calculating fuel compression power in Combustor fixed.

* Bug resetting Series/Transient input grid in Manual Case controller.

* Problem adding STOVL components to a models.

* Access violation when closing GSP while Project form open.

 

Improvements

--------------------------------------------------------------------------------

* Duplicates check on case control parameters.

* Inlet now has user defined Inlet nr. field for defining calculation

 order in case of multiple inlets in a model configuration. Gas path starting

 with Inlet with lowest nr. is calculated first. In case 2 Inlets with equal

 nrs. exists, Inlet with lowest exit station nr. takes precedence.

* Improved gas path nr. duplicate checking.

* Improved map pre-calculation check (embedded maps).

* Handling of (Environment) optional Delete of Series/Transient data: now

 also deleted upon changing Case type and if accessing the tab sheet itself.

 This function has a provisional option switch in the environment options.

* Stability of combustor iterations at high entry temperature due to

 recuperator.

* Stability of recuperator DP iterations to user specified Effectiveness

 improved.

* Case controllers now check whether OD or DP schedulers/equation inputs (when

 selected) are deactivated prior to calculation. When inactive these are

 indicated by red font color in combobox.

* Warning when changing Flight/Ambient conditions atmospheric model type or

 speed type when controlled by Operating envelope scheduler.

* When changing Flight/Ambient conditions atmospheric model type or speed type

 that is also case controlled, case control input is reset to none to alarm

 user upon model initialization.

 

Adaptations

--------------------------------------------------------------------------------

* Error message added when non-SOT Fuel controller input at OD calculation while

 DP had SOT input (DP SOT means OD input must be SOT in view of SOT equations

 to be set up).

* Options>Output>Oper point report>Automatic report pop-up option now unchecked

 per default in new case/config.  

 

GSP v11.0.1.18                                                        17-04-2008

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug with writing GSP component icon location information on XML causing

 unlinked components after reading nodes.

* Problem with right-alignment of valid numerical constant in expression enabled

 input fields.

 

Improvements

--------------------------------------------------------------------------------

* Combustor and fuel control handling of inputs: now inactive design inputs

 are only updated to DP by button-click in Combustor Design tab sheet for

 consistent inheriting of settings in cases.

* Exhaust nozzle inputs : now inactive design inputs

 are only updated to DP by button-click in Combustor Design tab sheet for

 consistent inheriting of settings in cases.

 

Adaptations

--------------------------------------------------------------------------------

* Error message added when non-SOT Fuel controller input at OD calculation while

 DP had SOT input (DP SOT means OD input must be SOT in view of SOT equations

 to be set up).

 

GSP v11.0.1.17                                                        16-04-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Unused series/transient data are now deleted (after confirmation) from control

 components (if not used due to particular case type of presence of case

 controller). The action is optional through a case management environment

 checkbox.

 

Fixed

--------------------------------------------------------------------------------

* Small problem with prompting for (re-)applying the envelopein Operating

 Envelope Scheduler.

* Bug causing immediate abort of Steady-state calculation.

* Bug in 11.0.1.16 release inhibiting propagation of data changes into child

 configurations and cases.

* Problem with empty Case select box when adding case under config.    

 

Improvements

--------------------------------------------------------------------------------

* Hint added indicating "Auto deactivate non-looping transient/ St St Series

 inputs" option in Operating envelope scheduler only comes into affect after

 (re-)applying the envelope.

 

 

Adaptations

--------------------------------------------------------------------------------

* Configuration and Case data change propagation confirmation now on single

 level with (Project optional) confirmation per child config / case and

 Yes, YesToAll, No, NoToAll and Abort buttons.

 

GSP v11.0.1.16                                                        26-03-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Model single component 'Revert to parent' function. Next to the exististing

 Revert to parent option for a complete case or configuration, you can now

 right-click on a component to Revert to parent the selected component only

 (only when a single component is selected).

 

Fixed

--------------------------------------------------------------------------------

* Problems with initializing combustion iteration in case of premixed fuel

 (upstream of combustorm, no fuel flow in combustor itself), causing failure to

 converge to combustor exit temperature.

* Problem with adding new Config or Case after Case had been copied.

* Customer specific library components types (Config, Case etc.) set

 corresponding to standard GSP parent component.

* Problem with reading Power controller maps from XML (local embedded map).

* Problem with unzooming in single y-parameter graphs with axis Autoscale option

 off (by dragging from lower right to upper left, i.e. opposite zooming

 direction).

* Problem with deleting temporary output table files.

 

Improvements

--------------------------------------------------------------------------------

* Rotating duct icon improved.

* Recuperator/heat exchanger components improved: can now specify zero

 Effectiveness or Qdes to 'deactivate' recuperator (effect on performance).

* Intercooler component model improved, iteration stability improved,

 can now specify effectiveness up to 1.

* Significant improvement of execution speed when changing case or config in

 project tree.

* Auto Reset OD input to Design option moved to General options, Initialisation

 tab sheet. The option now ONLY is active during DP ir DP series cases.

* Automatic OD intialisation now only in OD or Transient cases.

* Improved handling of separate settings for DP and OD combustor power setting

 from Combustor (DP) and Fuel control component (OD).

* Improved handling of Case control components settings when changing Case type

 or when inheriting new Case.

* Confirm DP calculation prior to OD (if necessary) moved from Output options

 to General option initialisation tab sheet.

* Separate confirmation option added for DP calculations for OD simulation

 initialisation in Output options Ouput tables tab sheet.

* Some default initial gas path station numbers adapted to correspond to

 SAE ARP 755A standard (without decimal points).

* Better handling of Canceling calculation/sweeps from progress monitor.

* Problem with Canceling/Aborting simulation run from Progress box fixed.

* Better indication of invalid case control inputs.

* Consistent error reporting on invalid active case control inputs.

* Automatic adoption of gas path upstream premixer fuel properties by

 zero fuel combustors burning premixed fuel-gas inflow.

* Improved case DP/OD dependend enabling/disabling.

 

Adaptations

--------------------------------------------------------------------------------

* All 'Component control' components moved to 'Controls' library (Component

 control library removed). Heat Exchanger/Recuperator and Dynamic

 Heat Exchanger/Recuperator components moved to 'Multi In/Out' library.

* Turbine component Spool inertial moment and Mechanical efficiency input fields

 now both editable for Case OD and DP (was OD and Config only).

 

GSP v11.0.1.15                                                        25-03-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Configuration and Case data change propagation into child configs and cases

 now extended with (Project optional) confirmation per child config / case.

 

Fixed

--------------------------------------------------------------------------------

* Problem with initializing bleed flows for initializing output fields in output

 tables.

* Problem with control of Property values when these are states causing failure

 to converge.

* Problem with DP Effectiveness iteration in Heat Exchanger / Recuperator

 components.

 

Improvements

--------------------------------------------------------------------------------

* Added separate Shaft (shaft nr. ID) and Component (component ID) rotor speed

 output options for turbomachinery component output using the 'Central

 Component Output' options tab sheet.

* DP iteration tabsheet in General options renamed to 'Initialization' and

 content naming improved (separate init options for DP and OD).

* Expression enabled numeric input fields now formatted according to format

 settings while input is still numeric constant (i.e. most input fields).

* Copy-paste nodes improvements: cannot copy into itself (must use Add subnode

 instead), only if Environment Case management options set, node can be pasted

 outside the parent sub-tree.

* Validation of Numerical input (in expression enabled input fields) improved:

 now single numerical constant is validated against Min and Max, as with

 non-expression enabled fields.

* Additional Output Par. component Parameter name max. length (was 15) set to 23

 (paradox table limit).

* Calculated expression parameter name max. length limited to 23 (paradox limit)

* In Cases, Control, Gas path and any other inter-component Links cannot be

 broken (they are of of type Configuration), so any moving of linked components

 is inhibited.

* In Cases, Linked components and Configuration components cannot be deleted.

* Expression enabled input fields now default to '0' again after exit when

 empty.

* Better handling with failure to prepare model after deleting case controls

 (exceptions in Check_and_Prepare_Model safely intercepted).

* Better handling of error messaging on empty expression fields in controllers

 when not overridden by case controllers.

 

Adaptations

--------------------------------------------------------------------------------

* Static text boxes in Ambient/Flight Conditions background color set to same

 as Parent control (grey / clBtnFace), for customer specific builds only.

* All 'Component control' components (except Bleed schedule which remains a Case

 component) are now Configuration components, since they involve linking to

 other components.

 

GSP v11.0.1.14                                                        09-03-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Ideal (full expansion) con-di nozzle option to calculate ideal (no shocks)

 supersonic exhaust nozzle expansion (regardsless of area ratio).

* Heat exchanger / Recuperator components now have extra option (on top of

 specifying Q, dT or Texit) to specify DP operating point in terms of

 DP effictiveness value (this implies automatic DP iteration towards

 user speficied Eff des).

 

Fixed

--------------------------------------------------------------------------------

* Heat sink tab in propeller component removed.

* Problem with black font color in highlighted combobox (with custom drawitem)

 solved (no white text).

* Problem hiding transient tabsheets when turning input control into a free

 state.

* GUI problems in Combustor and Fuel mixer water injection tabsheet.  

 

Improvements

--------------------------------------------------------------------------------

* Better correction of pressure using pressure loss specifications for

 calculation of combustor reactor chemical equilibrium calculations,

 (resulting in better correspondence between DP and OD combustor calculations

 when Mach is used to specify combustor exit static conditions).

* Propeller component can now be added to Configuration only.

* Now also FAR in combustor and mixer output is Fuel flow data output option

 checked.

* Obsolete 'Confirm disable series input on runmode change' option deleted from

 Model General Case management options.

* Obsolete 'Auto deactivate non-looping transient/St St Series inputs' and

 'Hide transient series tabsheet of all other control input components' options

 deleted (transient inputs of other control components always

 inactive/invisible if Case control active.

 

Adaptations

--------------------------------------------------------------------------------

* Input control components 'Control input value' (User specified or Free state)

 and 'Always create state' options now only enabled in Configurations (disabled

 in Cases).  

 

GSP v11.0.1.13                                                        19-02-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Check on Mach number not exceeding 1.0 when calculating static properties from

 flow cross area, velocity or Mach at engine stations.

 

Fixed

--------------------------------------------------------------------------------

* Flight/Amb conditions window now hides the transient tab sheet and names it

 correctly depending on the model case type.

* Problem populating the combobox with Ambient/Flight conditions parameters

 in case control components.

* Problem reading File maps on Init model with DP calculation.

* Problems with XY graph Legend and Carpet parameter comboboxes.

* Problem loading Fan duct map in child cases.

* GUI problems with Ambient/Flight conditions transient input window.

* Problem selecting scheduled parameter of OD scheduler components from case

 controllers.

 

Improvements

--------------------------------------------------------------------------------

* Case component option to insert multiple intermediate calculations (i.e. the

 inverse of the timestep) in between data input intervals now has

 bi-directional support (changing the series control options is now direct).

* Bleed option (mass flow or fraction of flow specification) can now be changed

 in configurations and case models.

* Re-generate series warning in Loop case control improves (Yes, No and Abort

 option).

* DP iteration handling of output tables when fields not found (renew table).

* Control component expressions now disabled if case controlled (+ override

 indication in group box caption).

* In Series/Transient control options, for design point series, reset model

 state variables back to 1 before each step is now optional: default is off and

 then the state of the prior series point is maintained for faster convergence.

 However, in some cases with DP equation controllers, activating this option

 (thus resetting all stated to one before each series point) may improve

 convergence.

* '->' added at start of DP and OD scheduler/equation components in case control

 comboboxes to indicate indirect control of scheduled parameter.

* Hints added to DP Equation controller saying that Property (Initial, Min and

 Max) values always are in SI units.

 

Adaptations

--------------------------------------------------------------------------------

* Changed relation between Shaft speeds and component speeds. Now first

 component defining shaft (usually fan compressor), defines shaft speeds.

* Separate Shaft (shaft nr. ID) and Component (component ID) rotor speed output

 options in turbomachinery component output tab sheets.

* Project options now under the Project submenu. Hints added to describe the

 Project, Model and Options submenu's.  

 

GSP v11.0.1.12                                                        12-02-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Option to enable/disable curve/carpet legend trailing zeroes removal.

* 'Revert changes' command added to Project tree (pop-up and menu's) to revert

 all model changes to state as when last loaded from current case/config.

* Project node operations (saving. reverting etc. added to node pop-up menu.

 

Fixed

--------------------------------------------------------------------------------

* DP equation control now shows NumFld title (instead of internal name) in

 case control components.

* Problems with validity / recursion check in expressions.

* Error when loading older models with ducts (InitializeControlStates call when

 still invisible).

* Related to prior one: Several problems when loading cfg/case (related to

 OnClick events firing when checkboxes change during loading).

* Problems with Bleed type selection in compressor bleeds table.

* Cooling flow accounting error in turbine with No Map option active.

* Correct TAB orders on a number of component window tabsheets.

* Problem with main menu inactive when in Model notes / Log data memo editors.

* Errors with auto save output table file names in project options.

* Problem with using global performance parameters in Addtnl. Outp. Par.

 component expressions.

* Problems with map saving and reverting after pressing Cancel.  

 

Improvements

--------------------------------------------------------------------------------

* Map handling: better error handling with invalid map formats.

* Case management input control enabling/disabling mechanism (case control

 input lists updating). Still to be checked/configured for several components).

* Help button added to Map control frame (Help text still to be updated).

* GPA components: initial PDF export file name now equal to test log file name.

* Bleed control and enabling/disabling cells in (compressor) bleeds

 table depending on case or config. Bleeds can only be defined in configs,

 in cases, only bleed values and bleed control nrs. can be changed.

* Output options table output confirm options for DP and OD Steady now with

 'single point' in caption and hint added.

* Map data consistency check option (Project options) checking consistent

 (repeating) crosstable column and row input values now actually checks all

 row input values also.

* Hint in map control 'Revert' button now ''Revert (cancel) changes' (better

 description).

* In Map graph, now the Map description (Title) is taken for the graph left

 top title. If empty, then the map file name is taken instead if in File mode.

 In the map graph window title bar, there is an indication with Map Title and

 '(local embedded)'.

 

Adaptations

--------------------------------------------------------------------------------

* The default design compressor rotor speed is back at 16540 rpm.

 

GSP v11.0.1.11                                                        04-02-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Bleed and load loss controllers can now be added to both

 Configurations and Cases.

* Customer specific Power and Installation loss controllers can now be added to

 both Configurations and Cases (until further notice).

* Map data consistency check option (Project options) checking consistent

 crosstable column and row input values.

 

Fixed

--------------------------------------------------------------------------------

* Problem with change propagation into child configs/cases when changing data

 that are fully inherited from ancestors.

* Problem Series tab sheets not visible After Case control component has been

 deleted.

* Problem with heat sink heat flux enabled/disabled handling.

* Schedule control active indication X not visible on icon when deactivated.

* Problem with DP icon position scaling and map graph limit clipping.

* Problem with 'No Inlet found' message with empty models and in Options.

* Model edit inhibit when at Options node problem.

 

Improvements

--------------------------------------------------------------------------------

* Heat sink component now indicated Disabled in model component icon.

* Empty text/string fields no not cause field inherits from parent anymore but

 now persist as empty (MapFileNameFld for example).

* Options node to access project options now accessed by single click in tree.

* Map file name field now always readonly.

* Map file name field label now changed to 'Originates from' when local.

* Map handling, error and data overwrite/clearing warnings.

 

GSP v11.0.1.10                                                        24-01-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Configuration and Case data change propagation into child configs and cases.

 This is a Project level option that can be deactivated, Confirmation can be

 deactivated and upon confirmation (with input field/grid/element and component

 name) answer can be Yes, YesToAll, No, NoToAll and Abort.

 

Fixed

--------------------------------------------------------------------------------

* Problems with duplicate output name warning.

* Problem with opening project with non-existing saved table file paths (path

 now reverts to default user table path when not found).

* Problems with Heat sink grid combobox.

* Problem aborting Design point series calculation.

* Problem with Loop control list autorefresh.

* Problem with Case control component not recognizing all other controls

 (e.g. other equation control components) after loading case.

* Problem with Operating envelope Power control selection and list input.

* Problem not showing Initial state property value in DP Equation control.

* Problem disabled Transient/Series tab sheet controls.

* Problem with switching from DP to OD and changing Fuel control input option

 requiring recalc of DP.

* Small project options fonts problem.

* Column header unit strings not updating with component/model unit system

 problem.

 

Improvements

--------------------------------------------------------------------------------

* Optional (Output options) save table to file dialog before clearing table.

* Changes in component names (top left field in component window, representing

 the component ID's in the project XML doc) now are propagated into child cases

 and configurations to ensure data integrity.

* Component names (representing the component ID's in the project XML doc)

 can not be adapted anymore it inherits from parents.

* Series tabsheet now shown after Generate series in Loop case control unit.

* Calculcation properly aborted after Heat sink component not found error.

* Add point button in Manual case control moved to Series tab sheet.

* Map handling after clearing map and <no map loaded> indication.

 

GSP v11.0.1.9                                                         23-01-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Optional output table save option in the Project option. With this option

 checked output tables are saved (not deleted as without the option set) and

 automaticcaly open at next opening of project. Specific table names / file

 locations can be given.

* Expressions can now be added in grid cells (as with Numeric fields) in

 component forms. Convenient to use constants or expressions with constants

 from a central constant expressions components in grid. In this build only

 enabled in Heat sink grid. Other grids will follow soon after more testing.

 (At MTT used to scale DP parameters with a centrally defined scale factor

 constant).

 

Fixed

--------------------------------------------------------------------------------

* Problem with NaN values in DP equation controller.

* Problems with DP equation controller.

* Problem with disabled Show all curves in single graph and Carpet menu items

 in graph windows.

* Problem refreshing graph after pressing Del or BckSp in field combo.

* Bug storing graph point symbol settings.

 

Improvements

--------------------------------------------------------------------------------

* Splash screen shaped up.

* Additional Output components output can now be used in equation controllers.

 (testen in DP equation controller).

* Vista compliance

 - Default new model saving path now in user's 'My documents/GSP/models' folder.

 - Default table saving path now in user's 'My documents/GSP/tables' folder.

* Standard breaks in output tables now also work for carpet plots (besides

 auto-breaks generated by case controllers).

* Carpet plot functions improved.

* Path of separate output tables opened from main window now remembered during

 session.

* Synchronizing mechanism added for output table columns vs. selected output,

 to work if opening other cases/configs with existing tables already open.    

 

GSP v11.0.1.8                                                         09-01-2008

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Map input disabled in Calculated Expression grid in Output options

 CalcColGrid: more or less obsolete with new version 11 TAddOutpValForm to have

 maps here, we need to develop a special ReadMapGridFromXml that determines

 MapClass and MapType on a per row basis

 

Fixed

--------------------------------------------------------------------------------

* Problem with Reset to Ref values after calculation (CopyRef calls back into

 CalcFinally methods).

* Problem with inheriting ComboBoxNumFld properties from XML.

* Problem with separate GSP output table / graph window.

* Inter-component visual link's station labels are transparant again.

* Problems with unit conversion in Case control components (e.g. Watts to kW and

 if custom formats and units are used).

* Calculated expression problems (related to Maps in CalcColGrid).

* Problem appending table to separately opened result table.

* Problems when setting first graph parameter (Y1) to 'None'.

 

Improvements

--------------------------------------------------------------------------------

* Case Loop control component now has static text boxes showing the reference

 (i.e. original value of) the controlled input field.

* Several windows enlarged.

* Power controller schedule tabsheet reorganized.

* Splash screen shaped up.

* Default/initial output 'table save' and 'append table'  path now equal to

 model file path.

* Better handling of output table error messages etc. in cases of tables not yet

 existing.

* Del and Bksp key now act as shortcut to empty (set to 'None') field select

 comboboxes in graph windows.

 

GSP v11.0.1.7                                                         16-12-2007

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Separate docking panels for Model notes and Log data.

* Model form menu items to access model panel, detail tree, model notes and log

 data.

* Option in Case controls to hide other Control component's Transient/Series

 tab sheet.

* Support of XP desktop themes.

* Vista Desktop capabilities including Aero ('glass transparency') supported.

 

Fixed

--------------------------------------------------------------------------------

* Problem with Windows list in mainform (no more docking panels in list).

* Problem with Governor (and derived component classes) schedules graphs.

* Font color problem in several grids (no inverse font color in selected cell).

* Problems using shortcuts (copy, paste etc.) in model window

 text editor docking panels.

* Power control component adapted to new map control frame.

* Local map data overwrite warning not working problem.

* Problems with scaling factors (with adapted in/output formats) in case

 control components

* Problem with resetting input field values after Case control component

 controlled simulation run (when option set in either General options or

 Case control component).

* Problem with DP Series progress bar.

* Problems with NumGrid checkboxes behaviour (WVNUMCTRLS unit).

* Problems with enabling / disabling NumFld's owned edit and unit sublabels.

* Problems with Thrust and Rotor speed control components: now enabled for

 both Configs and Cases (OD and DP).

* TChart on Quickreport problem on Report preview (GPA components).

 

Improvements

--------------------------------------------------------------------------------

* Improved handling of z-order of windows (preventing modal dialogs hidden

 behind other GSP windows after switching Windows applications).

* Map file name now turns red when not existing directly upon editing

 (provisional change).

* Now, an embedded map can be directly loaded from file (not via File option).

* Map handling (including clearing map, editing file map now direct file access,

 Canceling operations improved).

 - If trying to read wrong map type, error message follows and automatic

   reverting to previous map.

 - Warning (if General option checked) to overwrite embedded map data.

* Power control component functionality and GUI.

* Case controllers can now control equation controllers in a way that they

 'override' the expression result (i.e. equation value to match the controlled

 parameter).

* DP equation controller fields for case controller now only 'Expression result'

 'Initial' and 'Min'/'Max' removed (also see above).

* Loop case control code when selecting component's and parameters.

* Option in Case control to force Config General 'Preserve original input data'

 option.

* Rotor speed and Thrust Control parameters can now be both added in

 configurations and cases.

* Introsound per default disabled. Problem with linking registry setting fixed.

* Model Run Shortcut key is now F9 (was Ctrl-R)

* Initialize Model Shortcut is F8 (was Ctrl-I)

* Graph panel now has F5 shortcut for Refresh and F1 for Help.

* Simulation Progress Box width increased.

 

GSP v11.0.1.6                                                         09-12-2007

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Manual and Loop Case control components now fully functional.

* New map control interface implemented for all maps in standard version

 components.

* Optional deactivate of duplicate parameter ID (coming from different

 components with adjacent stations).

* New 'Design series' case type added: as for now this can only be used with a

 case control component.

* In General options now control is added to activate or deactivate all

 deterioration in the components.

* Transient/Series option now extended with options:

 "Always reset start time/point to default" and "Show start time dialog" (only

 enabled if former option checked, for faster series/transient analysis

 (especially for Gas Path Analysis / Adaptive modelling).

* Output option (Output tables tab sheet) added for automatic insertion of

 <break> row before series/transient output in table.

 

Fixed

--------------------------------------------------------------------------------

* Problem with positioning of buttons at bottom end of component data entry

 windows.

* Problems with local map storage (storing only after Ok button pressed).

* Problem with resizing non-square component and link bar icons when importing

 old models.

* Problem with exception reporting for invalid Nu expression in heat sink model.

 

Improvements

--------------------------------------------------------------------------------

* Auto-resizing project tree and model box, also when importing older

 pre version 11 models.

* Autosizing project tree width so that run button always visible.

* Auto-disabling Run button when no case selected

* Consistent input field access rules implemented. Summarized rules:

 a) 'Configuration-only' and 'Case-only' fields: only enabled when either in

    configuration (or reference model) or case project level.

 b) DP and OD input field access rules implemented: navy blue or otherwise 'DP

    tagged' input fields only enabled in either configuration project level or

    Design point or design series case type.

 c) Transient/Series or single point: with single point case type, control

    component Transient/Series tabs are invisible.

 Optional extra access (in GSP environment options for case management):

 d) For rule a), allow case input in configurations (note that vice versa

    (config input in cases) is NEVER allowed).

 e) Allow OD input in DP cases (not that vice versa DP input in OD is NEVER

    allowed).

 f) Allow editing components with no case type selected.

* Provide option to directly delete unknown components (no library availabe)

 when loading models.

* When component window hidden behind model window, clicking component icon

 now shows component window.

* Before project window closed or case/configuration node changed, now all

 component windows are checked to be closed to prevent problems with different

 recursive windows message loops and disabled main form (components that

 control simulation from outside project window such as GPA AM component,

 Case control components). If open, window must be closed by user first.

* Now Const Expression component has checkboxes in Output column.

* Break columns in Case control and Flight/Amb. condition transient/series

 input grids now has checkboxes to indicate break active or not.

* "Auto reset off-design input to design values" General option now default

 false (unchecked) if Case management is active (Environment options).

* Hints updated and working in Main form.

* Improved error messaging for expression parser.

 

GSP v11.0.1.5                                                         22-11-2007

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* When non-modal component form open (such as case control or adaptive modeling

 GPA control) clicking on the component icon in the model frame, brings the

 component data window to front (if hidden after simulation run).

 

GSP v11.0.1.4                                                         09-10-2007

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with persistent component parameter ID's changing when adding

 components.

* Many map handling problems, by new map control interface.

 

Improvements

--------------------------------------------------------------------------------

* Case control completely revised. Case controlled mode removed: now new case

 control components will adapt to selected case type in project tree.

 

* Parameter ID's now automatically persistent: default comp. ID strings now

 automatically unique and added to component outp.pars (e.g. PR, Eta -> PRc,

 Etac for compressor).

* Automatic adjustment of case mode column in tree.

* New uniform map control interface group box for all maps.

 

GSP v11.0.1.1                                                         09-10-2007

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Auto-saving and restoring docking layout and restoring default layout now

 works much better (better default layout), also when opening GSP models from

 Windows exporer.

 

GSP v11.0.1.0                                                         29-09-2007

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug inhibiting persistent changing of graph settings per case/config.

* Bug causing AV when renewing tables with graph panel open.

* Bug preventing correct reset of graph settings after renewing tables.

* No (irritant) focusing of GSP main window anymore during series calculations.

* Several small problems with initializing model during DP and OD sweeps fixed.

* Minor graph show/pop-up/refreshing problems solved.

* Bug skipping 1st DP/OD series output after redefining tables (after "Could not

 output all data message...").

* Bug causing failure to load case/config during tree node focus change.

* Problem invisible break indicator column in Ambient conditions input series

 table when loading older models fixed

* Several small problems in combustor component.

* Bug in calculation of effect of heat transfer in compressor and turbine on

 power fixed.

* Small bug causing double component ID nrs. added to heat flux parameters Q.

* Small bug related to updating changed inlet station number.

* Some problems occuring when docking/undocking graphs and tables.

* Bug initializing model when Reference Model case selected fixed.

 

Improvements

--------------------------------------------------------------------------------

* More descriptive flyover hint for model components, now including the User

 defined Name and ID string; can be extended with anything in the future.

* Stall margin SM now calculated in main calc loop to enable scheduling of stall

 margin using a limiter component.

* .xml extension added as alternative extension for GSP model files.

* Carpet plot functionality improved. Now 'group breaks' can be added in output

 table to separate different carpets of groups of curves. With every new group,

 graph settings, line colors etc. start from first again.

* Case management rules adapted to allow off-design type input and components

 to be entered/added to model configuration in order to best benefit from

 inheritance in case management tree.

* Getcomponent list routine improved to always return Component lists in combo

 box list boxes. Can now be used to have component selection lists available

 in all cases (not just after model initialization).

* New autosave project option to automatically save case or configuration upon

 case managment tree node focus change.

* Surge Margin SM parameter SM now always calculated during iteration (and not

 only at final output) to enable direct control of SM using limiters and

 schedulers.

 

New features

--------------------------------------------------------------------------------

* New components:

 - Rotating duct component for calculating change in pressure/temperature due

   to change in radius in rotating duct.

 

* New components:

 - Constant expressions component

   For defining constants and constant expressions. The constants can be used

   in epressions in other control components.

 - Fuel premixer component

   Derivative of combustor with all functionality to specify fuel flow copied,

   except for the combustion calculation. To be used in premix systems, gas

   turbines where fuel is premixed upstream of the compressor or other

   components preceding the actual combustor.

 

GSP v11.0.0.9                                                          29-6-2007

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Variable geometry schedule turbocomponents was suggested to be scheduled by

 %Nc while in fact the geometry was scheduled on %N.

* Schedule components and derivatives were not able to parse expressions having

 parameters with a dot (.) in the station numbering. Note that these dots are

 replaced by $ signs when selecting the parameters from the dropdown list.  

* Issues  of wrong input data after moving nodes up and down the tree are fixed.

 

Improvements

--------------------------------------------------------------------------------

* Improved the security string setting for output tables, exported output data,

 and all captions of the output windows (graphs, tables and report editor).

* A warning message is displayed when copied tree nodes are copied into a node

 other than its parent node or itself.

 

New features

--------------------------------------------------------------------------------

* Models created in GSP versions older than 11 will be automatically converted.

 E.g. output options are now stored differently. "OUT" output options will be

 stored while  "IN" output properties will be loaded from components that are

 connected to the previous model component. This is to prevent duplicate output

 settings. The modeller has to manually verify the station numbers for

 duplications.

* All gas path components now have a heat sink tab sheet for specifying a heat

 sink component and heat transfer characteristics for combined convection and

 conduction through a parametric boundary layer and wall to a uniform heat

 transfer heat sink component. A Nusselt relation with Re and Pr numbers can be

 specified in a user specified expression.

 In 'Gas path special' lib now the new heat sink component is added to which

 components can be linked to exchange heat. The heat sink also has a dynamic

 capability (mass and cp) for extra heat soakage effect. Further, heat transfer

 functions to ambient can be specified several ways.

 Note that the old 'Heat sink' tab for gas path transient heat soakage effect

 (transient only) now is called 'Heat soak'.

* Now constant names defined in Constant expression components can be used in

 all numerical edit fields. This is particularly convenient if the same

 constant variation must be applied to multiple data entry fields (e.g. scale

 factors etc.)

 

GSP v11.0.0.8                                                       24 May, 2007

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Iteration problems (AFQUIR messages) in mixer for options specifying core or

 duct area/mach/velocity are fixed.

 

Improvements

--------------------------------------------------------------------------------

* Now drop down lists with components always available (not only after model has

 been initialized).

* All table files, temporary files and PDOXUSRS.NET files now in user profile

 (Documents and settings folder) to allow running from limited access user

 accounts (Windows Vista).

* Input parameters can now be specified by a logical description (i.e. the

 description or name of the numeric input field) in the case control

 components.

* Changes to the "Add. Output Parameter" component have been made to allow use

 of one "Add. Output Parameter" in another "Add. Output Parameter" component.

 Now format and unt string are formatted using the user defined values.

* Unit columns have been added to the serie of case components to identify the

 unit format.

* The scale of the referenced parameter is now being used in the case control

 components. When referencing e.g. PTO (Power Off-Take) of a turbine using a

 case control component the value in SI will be in [kW] (default).

* Input parameter values are maintainced after model calculation crash, DP

 iteration or case run. Optional the last values can be left in the parameter

 input fields using options on the "DP iteration" and "Case Management" tab

 sheets of the models' "General Options".

* The default project file extension has changed from ".xml" to ".mxl" to avoid

 confusion with existing editors and files on users computers. THe ".xml" file

 extension is still supported.

 

New features

--------------------------------------------------------------------------------

* User specified parameter formats. In output options one can now specify custom

 parameter display formats, units and associated scaling factors. For example

 g/s kan be used for mass flow instead of kg/s, requiring a scale factor of

 0.001 and unit string of [g/s]. See 'Formats' tab sheet in Output options.

 

GSP v11.0.0.7                                                  22 February, 2007

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with sizing link bar after rotation resolved.

* Problem with generating output to tables from different cases/configs with

 different columns (index out of range exception).

* Cancelling the loading of models now continues as expected without an error

 message.

* Expression box of the DP equation controller now correctly enabled/disabled.

* Displaying the result tables in a separate window (from main GSP window select

 Table to open an isolated table window) now display the table and the graph

 sheet. Options are added to show/hide and customize the windows.

* Rotating LinkBar problems.

* Fixed deleting of components that have a parent and are not of type case input

 control components.

* Fixed active selection in the project tree when cancelling on saving node

 dialog when jumping (by selecting) to other node.

* Unexpected message asking to save node while no input has been changed (e.g.

 changing focus form one node to another).

* Not saving a newly created Case now reverts the chosen running mode (when

 changed) back to the default i.e. 'Select mode...'.

 

Improvements

--------------------------------------------------------------------------------

* Model panel, detail tree and output tab panels now have minimum width and

 height.

* Exception handlers are added to catch errors resulting form non existing xml

 configuration files.

* Multiple monitor support. This enables running of GSP on multiple monitors.

 Windows and dialogs will be openend on the correct monitor.

* All controller typed transient data input sheets are now correctly named

 (either 'Steady State Series' or 'Transient') and displayed when then should

 be displayed depending on the modelling mode.

* Changing calculation runmode will trigger a dialog whether to deactivate

 steady-state series/transient data or not.

* MoveUp and MoveDown of nodes (configurations or cases) improved.

 

New features

--------------------------------------------------------------------------------

* New functions in case management tree

 - 'Revert to parent'; i.e. re-inherit all parent model data). This is

   convenient if after some editing in a case for example one wants to revert

   all changes, i.e. reset all model data parent case/config.

 - 'Copy to parent'; i.e. copy all case/config model data to the parent case or

   config. This is convenient if after some editing one realizes the changes

   should have been entered in the model data of the parent or an ancestor

   case or configuration.

 - 'Refresh detail tree' command (button in upper right of detail tree) to

   reset the detail data to the last entered model data and delete any data

   still equal to parent.

* Added a progress indicator when running design series calculations using

 design series case components (registered casemanagement users only).

 

GSP v11.0.0.6                                                  8 September, 2006

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Flight/ambient conditions tab sheets configured accordingly the modelling

 mode of the model (registered casemanagement users only).

* 'Design series tab' (actually the 'Transient' tab) now visible again in design

 series modelling mode (case controlled model run mode)(registered

 casemanagement users only).

* Evaluation of global parameter 'OPR, Overall Pressure Ratio' has changed to

 enable the use of OPR in (both design as off-design) equation controllers.

* Limiter can now be used in off-design analysis when used in case controlled

 model cases (registered casemanagement users only).

 

Improvements

--------------------------------------------------------------------------------

* The Advanced OD Series Case control component (registered casemanagement

 users only) is now more robust. On cancelling the component edit property

 window columns are reverted to the values on opening. Specifying level

 parameters sequentially is not necessarry any more.

* Output setting by use of the 'Central Component Output' functionality of the

 Output options window (tab sheet 'Central Component Output') has been

 improved.

* The input parameter (input1) of schedule control components can now be

 accessed by the case input control components (registered casemanagement

 users).

* Schedule control component now have a switch to disable the ability to be

 controlled by case components. This will effectively enable the advanced use

 of the schedule controllers (i.e. the ability to define an equation that is

 parsed to a value, rather than the specification of the value itself by use of

 the case input controller components) (registered casemanagement users).

 This also applies to DP Equation component.

* 'Transient' tabsheets are now not labelled with 'Transient' if the modelrun

 mode is 'Steady State Series'.

* Operating envelope scheduler component has been updated.

* Case components currently display only available parameters that can be

 controlled from the case component. To 'unlock' more parameters the

 appropriate component has to be openend and options changed.

* Improved map handling routines.

 

New features

--------------------------------------------------------------------------------

* Deleting of case components is allowed even if there are parent instances of

 these components, which e.g. cannot be done for gas path components. Case

 components are merely a sort of preprocessors in setting input data that do

 not change the model itself, therefor these components are allowed to be

 deleted.

* A 'Switch' components has been added to the 'Auxillary' components library. A

 switch can be a usefull component in series calculations in cooperation with

 appropriate case (input processor) components to set a certain parameter to

 any (default) value. Be sure that the component number is greater than the

 case component component number (calculation order).

* Press the 'Right windows key' to open the GSP component menu for a selected

 GSP component.

* DP equation component will disabled when non-design case run modes are

 inherited from the design case (registered casemanagement users).

 

GSP v11.0.0.5                                                      21 July, 2006

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* "Unpredictable" output by the 'Central Component Output' functionality of the

 Output options window (tab sheet 'Central Component Output') has been fixed.

* After exporting an embedded map or an externally linked map file the name of

 the temporary map name (opened in the default text editor) was stored as the

 actual map name. The original map name will now be kept stored (registered

 casemanagement users only).

* Model (Mdl) opened with disabled case management features (in environment

 options) will now hide the project tree, config/case notes and details tree

 (registered casemanagement users only).

* Project options now disabled with disabled case management features

 (registered casemanagement users only).

* Due to the complex inheritance structure of the case components some case

 component options were invisible while they should be visible and some options

 were visible while these options should be invisible.

* Pressing delete button for the output tables did not work, instead any

 selected GSP component icons were deleted. See improvements below.

* Series of level 3 data parameters were accedentally filled with level 1 data

 in the Advanced OD Series Case control component (registered casemanagement

 users only).

* VG angle outputname 'VG Angle' of the variable geometry control component

 (registered users only) has changed to 'VG_Angle' to allow parameter to be

 chosen in expression field translators (translate an expression with output

 parameters into a numeric value).

* Design point iteration (equation) component now has published parameters

 TABLEOUT and MAPOUT to use the table and map functionality in the expression

 field to build up a scheduled input parameter. (registered users only).

* Problems with station numbering duplicates and PR duplicates now fixed for

 heat exchanger components.

* Model run mode and edited configuration node name now revert to the mode/name

 before editing when the changes are not accepted on node change (scratch

 working, registered casemanagement users only).

 

Improvements

--------------------------------------------------------------------------------

* Use delete button on St.St. and Transient output table to delete selected row

 or row(s) if the table is active.

* If an amount of points has been specified for a certain level in the Advanced

 Series case component (registered casemanagement users only) but no

 corresponding level parameters have been specified, on clicking the

 'Create Levels' button the amount will be set to zero (unused).

* A 'Case controlled' model run mode has been added to allow 'Case components'

 (which are merely a sort of preprocessors) to set the appropriate model

 running mode automatically (registered  casemanagement users only).

 

New features

--------------------------------------------------------------------------------

* Disabled parameters referenced by the case component are now displayed in red

 to quickly identify invalid input (registered  casemanagement users only).

* Duplicate parameters referenced by the case component are now displayed in red

 to quickly identify invalid input (registered  casemanagement users only).

* Schedule components and Design Point Equation component are changed to be used

 by the case components. An option (Disable case control operation) has been

 added to disable the control by the case component (registered  casemanagement

 users only).

* Environment option to enforce model security markings for each newly created

 model (registered  casemanagement users only).

 

GSP v11.0.0.4                                                       09 May, 2006

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Max static torque entries that have become invisible somehow (probably caused

 by object ancestor class changes) of the clutch component of the STOVL

 component library.

 

Improvements

--------------------------------------------------------------------------------

* Inproved internal gas property output option storage to prevent duplicate

 output ID's. Duplicate output options (e.g. "in" gas properties) will be

 prevented since no "in" gas properties will be stored. Now checking the "in"

 output properties will set the respective "out" options in the linked entry

 components.

 

New features

--------------------------------------------------------------------------------

* Station numbers are checked for duplicates (in Init and Calc).

* Optional en/disabling of off-design data input by option "Enable off-design

 data input fields through entire configuration" in Environment options' Case

 Management tabsheet.

* Environment options' Case Management tabsheet option "Edit case model

 (components) without selected runmode" enables or disabled the opening of the

 componentmodel property window.

 

GSP v11.0.0.3                                                     2006

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Stationnumber dialog on changed model configuration will not be called when

 switching between different configurations or cases. The stations are read

 and set from the stored configurations/cases.

* The modified status indicated on just loaded configurations/cases that the

 model changed, while it did not.

 

Improvements

--------------------------------------------------------------------------------

* Enhanced map import and export/edit functionality.

* Enhanced central component output, for all components or for a selected

 component (from dropdownlist). Output options now grayed for option "all gas

 path components" if options are (not) checked for all components.

 

New features

--------------------------------------------------------------------------------

* Extra buttons to import maps into the

 

 

GSP v11.0.0.2                                                     21 March, 2006

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

 

Improvements

--------------------------------------------------------------------------------

* Input query for selecting case type upond adding new case

* Confirmation screens when saving models encrypted (e.g. warning when automatic

 saving encrypted is active)

* Enhanced case control components (ODpoint, ODseries, and ODloop contol).

* Components are bound to certain projects model level. E.g. case components can

 be added to cases only.

* Added an alternative docking area left of the project management tree

 

New features

--------------------------------------------------------------------------------

* Custom saving and loading of the models docking layout.

* Copy item added to component right click menu.

 

GSP v11.0.0.1                                                  22 February, 2006

 

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug failing to activate Station number dialog (GSPlink icon inactive after

 model load).

* Problem Project window focus lost after end of St.St./Transient series calc

* Bug with error message "Could not convert Null value to valid floating

 point..." when requesting graph for table with columns containing Null values.

* Bug Oper. Env. Scheduler hangs when generating envelope with 'min=0 Zp' set to

 lower value than first Zp step solved.

* Bug Oper. Env. Scheduler show map from Schedule table problem solved.

* Problem with transient input table graph representation fixed.

* Ctrl-a now only works inside model configuration panel as it should

 

 

Improvements

--------------------------------------------------------------------------------

* Station nr. Link type name now less cryptic ('Out1' instead of 'ltOut1')

 

 

GSP v11.0.0.0                                                   2 February, 2006

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Many GUI improvements, see new features section

 

New features

--------------------------------------------------------------------------------

* Docking GUI for both the Main form and component libraries as the model forms.

* Auto save of docking layout

* Easily revert to std docking layout (View menu)

* Docking options window for docking styles, containers etc. (View menu)

 

GSP v10.0.3.0                                                   4 November, 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Many small fixes for upcoming release including configuration/case management.

 

Improvements

--------------------------------------------------------------------------------

* Many small improvements for upcoming release including configuration/case

 management.

 

New features

--------------------------------------------------------------------------------

* Many new features for upcoming release including configuration/case

 management.

 

GSP v10.0.2.9                                                   19 October, 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug when saving models that are larger than the canvas holding the component

 icons (when saving the model while displaying the lower right corner the upper

 left icons where not accessible anymore because the scrollbars are not visible

 after loading the model).

* Bug in Limiter component (Suppl.Comp.Library) that prevented automatic

 normalisation of limit error (on first calculation pass after DP calc).

 This fix sigificantly enhances iteration stability and speed with the limiter.

* The operating point report now correctly indicates when at the DP with

 'Design Point' instead of 'Steady-State'.

* Bug status bar info not updated in operating point report fixed.

* Problems with saving/loading alternate unit settings (Imperial) fixed.

 

Improvements

--------------------------------------------------------------------------------

* Disabled control components (unchecking the 'active' checkbox for controller

 components) now display a red cross on the component icon in the model window.

* Improved Model data report structure.

* Improved layout of Operation Point report.

* Improved the positioning of the results window (Steady State/Transient table)

 (resizing height when results window is larger than gap between model window

 and screen edge). Use Ctrl-W to position results window under model window. If

 the gap between taskbar and model window bottom is smaller then a certain

 minimum (to show the buttons, menus, etc.), the window will not be moved.

* Added option to enable/disable save dialog of the GSP Global Report Editor

 in the models general options window (Option->General->Tab Confirmation->GSP

 Report Editor checkbox)

* Power off take (PTO) can be added to output data tables.

* The map scaling factor of the turbine caused problems with the scaling and

 drawing of maps in case of high PR's and extreme scaling factors for PR/Beta.

 The scaling method of the compressor map has been adopted

 (PRdes-1)/(PRmapdes-1). Problems have been encountered once during several

 years of modelling. Scaling turbine maps obviously has been proper in all

 cases (where the scaled maps did not look odd somehow), which has been the

 case for all applications.

* Equation, Table, Map and Generic Equation Schedule control components (Suppl.

 Library, registered version only) now functional for DP also. For DP,

 - scheduled parameter must be component property (select separate design input

   property corresponding to OD scheduled property),

 - since for DP, a separate state to match the extra error cannot be specified

   either the property must be state ('Property is State' option) or the

   'Determinate relation' option must be selected. This in effect gives the

   schedule control the same functionality as the DP equation control during

   DP calculation.

* Schedule controller table inputs do not have to have an ascending first column

 anymore. GSP auto-determines whether the column is descending or ascending

* Improved stability in compressor and turbine calculation (protecting against

 invalid PR values during iteration).

* Limiter control component now has Limit and Pset input value outputs.

* DP equation control component now has Scheduled and State value outputs.

* Output table shortcut key for table copy to clipboard not Ctrl-Alt-C to keep

 Ctrl-C for copying singel cells when in editor mode.

* Shaft speeds now added to global performance data output in operating point

 report.

* Improved alignment of units in operating point report.

 

New features

--------------------------------------------------------------------------------

* Table extrapolation user selectable (fixed or linear extrapolation)

 (Initial release in Limiter and equation control components in the

 Supplementary Components Library, will be implemented in other components

 later)

* Results table window option added to quickly place the window on top of the

 model window. Use Ctrl-T on an active results window (either steady-state or

 transient results window) or Options->Table on top of model window to move the

 window on top of the model window. Note that the height of the results window

 will be adjusted to the space available between screen edge and model window

 top. If this gap is smaller then a certain minimum (to show the buttons,

 menus, etc.), the window will not be moved.

 

GSP v10.0.2.8                                                 20 September, 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug with initializing combustors and derived components due to LocalMap button

 OnChange event handler calling InitializeControlStates during Form create.

 

Improvements

--------------------------------------------------------------------------------

* Model Data report internal procedure system changed to more add item in new

 classes/components inheriting from older components.

* Added more design values to exhaust nozzle Model Data Report.

* Improved iteration stability with Exhaust nozzle pressure ratios around 1. Now

 negative flow values are calculated (reverse flow) in case PRnozzle<1 during

 iteration in order to maintain a continous relation between PRnozzle and W.

 This prevents singular jacobian matrices.

* Improved Limiter component in Supp. component library (not in LE edition) :

 Can now properly operate on User input (next to equations) controls, also if

 user input is also swept for St.St. series input. Input is properly reset to

 series or user specified input, after limiter has adapted input (e.g. power

 setting) value to satisfy limit. This means limiter iteration is re-performed

 for every OP.

* Improved Load Ctrl component. Now multiple load components can be used with

 proper calculation of total engine shaft power output.

 

GSP v10.0.2.7                                                12 August, 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Upon deactivating Equation or Designpoint iteration control components (or any

 other derivative of a control component), checks for (non entered) data

 entries in certain user required fields of inactive components (active

 checkbox on design sheet unchecked) are not performed. Drag and drop a Control

 component on the model window and deactivate the active switch. A design calc

 will not trigger messages that certain fields have not been filled out.

* Bleed flow fraction exceeding 1.0 is fixed for Design point iteration

 calculation mode.

* Bug fixed related to erroneous resetting of DP inputs after transient run.

 

Improvements

--------------------------------------------------------------------------------

* Increased the time to show hints to 10 seconds (some hint text are so large

 that 5 seconds was too short to read the text in one time interval).

* Dynamic pressure q as output parameter of the flight conditions now displays

 incompressible (aerodynamic) q (0.5*Rho*V) instead of Pt - Ps (which includes

 compressibility aspects).

* More free state DP properties added in DP equation control component.

* Now reset of DP input to DP iteration result is optional, depending on model

 General Options (DP iteration tab sheet).

* Preparation of model for OD iteration (setting up states/errors for OD) always

 was automatic after any DP calc. It now is optional after DP iteration

 depending on the General Options|DP iteration tab sheet|"Automatically

 initialize for OD calculation" option (and still automatic after a single

 DP calculation).

* SOT iteration improved. Automatic calculation of initial Wf estimate if Wfdes

 not specified (=0), otherwise Wfdes is used as initial / normalisation value.

* Error reporting of 'O2 concentration too low' improved (indication of

 component).

* Added functionality to save model in text format (xml based) which is a prime

 requisite for saving projects containing case management.

 

GSP v10.0.2.6                                                       6 July, 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Specifying exhaust nozzle losses in GSP using CV (coefficient of velocity) to

 account for friction and/or flow non-uniformity did not result in a total

 pressure drop at the nozzle exit plane.

* DP Equation Controller: now with initial value entry for state variable

 (only active if non-blank) and Min, Max (only active if not both 0) to set

 range for state. State is automatically kept in range also during iteration.

 This means that if a DP can only exist outside the range, convergence will

 not be obtaind and an iteration error will be reported.

 

GSP v10.0.2.5

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Option in Fan, Splitter and descending component models to specify which

 downstream gas path (duct or core, 1 or 2) is calculated first. This is for

 cases where bleeds must be calculated in one downstream gas path that is used

 in the other. For example: is fan duct bleed is inserted in core flow (e.g.

 behind LPT), the duct flow must first be calculated DownStream Calculation =

 Duct first.

 In the case of both flows from duct to core and vice versa, the problem

 can not be made 'determinate' anymore and splitter and mixer components must

 be used (instead of bleeds/sec. airflows) to model the secondary flows, like

 in the ABFAN_SECAIR model.

* Changed Font color of ActiveCheckFLd from clNavy to clWindowsText again:

 in TEqCtrlForm. This means that for ALL inherited control components now

 NO recalc of Design after change is required ! (Keep eye on this for a while).

* Small problem with resetting map file path after changing file path in edit

 box in Schedule and equation controllers fixed.

 

GSP v10.0.2.4

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Disabling of placing results table under model window when there is no model

 (viewing table only, accessed through the GSP main window via

 Tables -> Open Table... or Reopen).

* Problem with interference bleeds/cooling flows and volume dynamics. Now change

 in enthalpy (energy) in volume dynamics calculation calculated with RH

 (reaction enthalpy) instead of FH (enthalpy function) which depends on

 composition corresponding to NASA CEA.

 RH is enthaply of mixture corrected to value with Trefchem (298.15K) as 0

 point and.

 

GSP v10.0.2.3 Beta 23 April 2005

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Customer specific bugfix involving wrong discharge coefficient when exhaust

 area is limited by the maximum specified (using CDthroat instead of CDexit).

 

GSP v10.0.2.2 Beta

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* BUG with missing properties in combobox in Schedule control components fixed.

* DP Equation component Scheduled Parameter Property list now correctly filled

 with properties (not DP properties: these must go in the Free State property

 combobox only.

 

GSP v10.0.2.1 Beta

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Minor improvements in relation to SOT DP iteration functionality

 implementation.

 

Fixed

--------------------------------------------------------------------------------

* 'Cannot normalize Wf state for SOT...' error message problem with combustor

 used as afterburner fixed.

 

GSP v10.0.2.0 RELEASE VERSION

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Customer specific improvements

 

GSP v10.0.1.9 Beta

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* SOT can now be specified for DP calculations also. This is possible by

 automatic use of the new DP iteration functionality. A DP equation is

 automatically added when SOT is specified

 

Improvements

--------------------------------------------------------------------------------

* Std. Component library now show AFTER main form upon start-up as they should.

* 3rd statusbar panel in model window enlarged and text better aligned.

* DP equation component (Suppl. library only) stability (iteration),

 error interception/reporting and GUI improved.

 

Fixed

--------------------------------------------------------------------------------

* Number of bugs in DP equation component (Suppl. library only).

 

GSP v10.0.1.8 Beta

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Provisional DP equation component (Suppl. library only)

 

Improvements

--------------------------------------------------------------------------------

* More consistent captions for Application title and version.

* GSP.INI file now stored in user profile (..\Application data\NLR\GSP\GSP.INI

 for more compatibility with low access rights issues.

* Bug fixed: standard libs invisible per default with empty/no GSP.INI file.

* bug fixed: error States and Errors report after Init model.

 

GSP v10.0.1.7 Beta

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Bleed out-flow functionality added to duct component

* Bleed out-flow functionality added to fan core component

* Added new global variables A0 (total free stream capture area) and A1 (total

 inlet entry area = highlight area)

 

Improvements

--------------------------------------------------------------------------------

* Report editor's output parameters not included in the output table now

 displayed as "*****" to indicate parameter not being added to the output data

 set. Empty (only spaces) led to misunderstandings.

 

Fixed

--------------------------------------------------------------------------------

* Accidental zero bleed flow during off-design does not result in error

 (division by zero).

* Pressure vessel's Model Option "0" division by zero during off-design

 calculation.

* Calculation of static properties in Pressure vessel during off-design.

* Static exit velocity calculation fixed for mach (used velocity by accident).

* Upon enabeling Input1 output parameter,the output value is stored in the

 output table (control components).

 

GSP v10.0.1.6 Beta

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* The suplementary library has been extended with an installation effects

 component. Global output parameters FNinst, FGinst and TSFCinst are added

 to assess installation effect on global performance (registered users only).

* Added a general option (small button) to deactivate all the steady-state

 series or transient input data of all the components in the model window, and

 of the flight/ambient conditions.

 

Improvements

--------------------------------------------------------------------------------

* Some (dedicated custom) components only allow a single instance on the model

 window. Users cannot drop more than one of such component icons onto the model

 window now.

* Pressure rise in the combustor by entering negative values in the pressure

 loss numeric field is now enabled (on request of several users).

* Quickly open tables from main menu using Shift+Ctrl+number. Number 0 (zero)

 will quickly open the last saved output table.

 

Fixed

--------------------------------------------------------------------------------

* FARexit output variable in combustor lagged calculation behind.

 

GSP v10.0.1.5

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with Propeller model fixed (controlled beta with fixed power turbine

 speed).

 

GSP v10.0.1.4

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with deactivated Power controller fixed.

* Transient tabsheet visible again in Power control components.

* Expression box made invisible in Map, Table1D generic control components.

* "No inlet component" error message suppressed when only editing/copying

 component.

 

GSP v10.0.1.3

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with scaling factor in Power control schedule fixed.

 

New features

--------------------------------------------------------------------------------

* Power control scaling factor now user adaptable off-design.

* Map, Table, Equation and Generic Schedule controllers now have a

 "Determinate relation" option to control component properties directly without

 additional equations and a state for the property. This improves stability.

 Also see next item.

* In GSP model window, unlinked components (typically schedulers, maps etc.)

 can be moved to the start or end of their calculation order. This is

 convenient with Determinate relation schedule controllers: to have the

 controlled propery's component later in the calculation sequence (higher

 component number).

* Improved checking of correct input in Schedule controllers.

* Now both ascending and descending Power codes possible in Power controller and

 derived components (was descending only).  

 

GSP v10.0.1.2

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* The external link to the fuel control component in the generic power control

 component was not saved on saving model (registered users only).

* Added FARexit output parameter in the combustor component.

* For a duct component when output of the dprel was requested the data for 2

 flows was obtained, fixed this to 1 flow.

* Could not display combustor map on show button click fixed.

* Several minor improvements in GUI elements (captions, positions etc.).

* Incorrect captions of general tabsheet input numeric control of generic

 control and power turbine control component.

* W.P.J. Visser of Delta Consult extended the numeric grid components of the

 WVCOMPS (additional components library containing e.g. grids, numeric

 controls, etc.) to set runtime added columns in grid in previously saved

 models to type STRING after the model has been opened again. More specific:

 Added columns (schedules) in the power controller component are now able to

 display stored map names when opening a saved model (registered users only).

 

New features

--------------------------------------------------------------------------------

* Added output option Ptin_core/Ptin_duct on user request in mixer component.

 

GSP v10.0.1.1

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* The "power delivered to shaft" input field next to the radio group box of the

 turbine's design tab sheet defines the amount of transfered power in design

 calculation. The value depends on the option. Values below 1 truncated to 0

 because an incorrect numeric type was chosen when loading saved model values

 from file when loading a model.

 

GSP v10.0.1.0

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Several minor improvements in GUI elements (captions, positions etc.)

 

 

GSP v10.0.0.9 BETA

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Shortcuts:

 - When the model form (containg the GSP engine model) is active:

   + press CTRL+S to save the file

   + CTRL+P will print the layout of the engine.

 - When the GSP main form is active:

   + press CTRL+(a number) to quickly load the model from the

     recent file list, i.e. CTRL+0 (control+zero) will quickly open the last

     opened model.

 - When the St.St. or transient table is active:

   + use CTRL-W to place the top of the table directly under bottom of the

     model (if not bottom is below screen height, the table will be placed at

     the top of the screen);

   + use CTRL-S to stretch the width of the output table to fit the width of

     the screen.

   These features can also be selcted from the "Options" menu on the output

   table window. Both shortcuts toggle the state of the options in the

   "Options" menu that is visualised by a checkmark in from=nt of the option.

* Extensions to DPsweeper component (Suppl. comp. lib only)

 Now also compressor bleed flow properties as specified in the Bleed table

 (Bleeds tabsheet), turbine PTO loads, combustion efficiency, mixer, duct

 and nozzle coefficients are added as DP sweeping parameters. Depending

 on user requirements there may be more added in the future.

 

Fixed

--------------------------------------------------------------------------------

* Stations 'Throat' and 'Exit' of the Exhaust component now added to be

 displayed in the "operating point report".

* Problem in "operating point report" (on model form from Menu Results choose

 "operating point report") of displaying PT twice instead of PT and PS.

* Problem upon copying and pasting components from the model form to (other)

 model form(s); the component label (the number uniquely identifying the

 component on the form) seemed to copy the value of the old component and then

 draw the new number over the old one.

* Many problems with the Nozzle and Nozzle controller components GUI fixed.

 

Improvements

--------------------------------------------------------------------------------

* OPR global parameter defined as Combustor entry PT / First upstream Inlet exit

 PT.

* Schedule equation control components improves on many details.

 

GSP v10.0.0.8

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Component models now have properties, which can be accessed using the

 property control or the schedule map, equation and table control components.

 This option provides a direct interface to many internal component paramters

 and requires knowledge of the internals of GSP.

* Maps (2-D look-up) and tables (1-D look up) can be used in the expressions for

 calculated columns.

* All maps, tables and schedules used in components and calculated columns now

 have the option of quadratic interpolation as alternative to linear.

 

Fixed

--------------------------------------------------------------------------------

* Problem with operating envelope scheduler generating double point 1 rows in

 Flight/Oper. conditions transient input tabel.

* Interpolation option radio group in some components has been removed from the

 Design tab sheet.

 

Improvements

--------------------------------------------------------------------------------

* ABcontrol component improved with options for manual control and control of

 Texit, FAR and Wf.

* The International Standard Atmosphere is now updated to cover the range of -5

 to 80 km. (The previous atmosphere ranged from an altitude of -2 to 20 km.)

 

GSP v10.0.0.7

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* In analogy to the compressor, additional map options: Operating Line and No

 map (DP only) have been implemented for the fan core and duct flow passage.

 The Operating line option is an advanced feature to analyze (off-design) gas

 turbine performance in case the compressor map is not available. The No map

 option can only be used to perform design point analyses.

* For compressors, turbines and fan components the map scaling factors can now

 be written to the output tables.

* For compressors, turbines  and fan components map scaling factors for

 off-design can be disabled (i.e. setting them to 1). This allows the model to

 use maps as they are specified (e.g. for  matching of actual components).

* In batch mode (St. St. series) the simulation will not stop when an error is

 encountered. Instead a message is written to the report editor and a comment

 to the output table.

* Environment option added to have GSP start-up model folder at folder of last

 opened model.

 

Fixed

--------------------------------------------------------------------------------

* Bug in Ambient/Flight conditions transient row edit window. Now units in

 'Transient flight conditions input' window are corresponding to Unit system

 set in Ambient/Flight conditions.

* Ctrl - P and Ctrl - S menu items were not linked to the print and print setup

 commands in the graphical map figure window.

* Initial window shows on the fuelpump page 2 enabled numeric input fields while

 there should only be one enabled depending on the specified option.

* Problem with location and name of on-line help file gsp.hlp solved.

* Wrong indication of active limiter in output table problem solved when using

 multiple limiter control components (Supplementary library only!)

 

Improvements

--------------------------------------------------------------------------------

* Batch mode option for transient and steady-stae series calculations: in the

 model Transient/series options now interactive error reporting (requiring the

 user to respond before calculation is resumed) can be deactivated. With this

 option the error logging functionality should be used (see below).

* Error logging functionality

 In the model output options (Debug tab sheet) error logging options are added

 providing a means to track errors during calculation. This is particularly

 convenient with the Batch mode option active.

* Iteration stability improved around very low fuel flows (particularly with

 power setting input as state, where fule flow may become <0 during iteration)

* Iteration stability improved around very low nozzle pressure ratios NPR

 where NPR may become <0 during iteration)

* The drawing of steady-state and transient operating points in components maps

 has been uncoupled from the scale to model design point option. Scaling to

 design point option is unwanted when actual maps are used (when map scaling is

 disabled).

 

 

GSP v10.0.0.6

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Additional compressor map options: Operating Line and No map (DP only).

 The Operating line option is an advanced feature to analyze (off-design) gas

 turbine performance in case the compressor map is not available.

 The No map option can only be used to perform design point analyses.

* Additional turbine no-map option. The user can fix the turbine operating point

 using the no-map option to enforce a simple turbine operating point.

* The OPR has been added as an additional parameter in the DP sweeper component.

 

Fixed

--------------------------------------------------------------------------------

* Bug with PTO specification in Turbine components (PTO was multiplied

 with 1000).

* Display problem with labels in legend in 'all curves in single graph'

 (wvgraphs.bpl package)

 

GSP v10.0.0.5

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Added several new total and overall engine parameters to the global output

 options dialog (e.g. total intake airflow, total exhaust exit cross area and

 Overall Pressure Ratio, OPR defined as Pt3/Pt2 using ARP 775 station

 numbering).

* Added a user interface to determine the station numbering for inlet front

 face, exhaust throat and exhaust exit. The Station numbering for the inlet

 entry and the exhaust exit will become visible in the component icon similar

 to all station numbers. This feature prevents the user to open models created

 with a version later than 10.0.0.5 in a version lower than 10.0.0.5.

 

Fixed

--------------------------------------------------------------------------------

* The fuel pump entry pressure expected a value in bar to convert it to

 pascal for further analysis. The conversion is not necessary anymore since

 the major upgrade to GSP 10.

 

Improvements

--------------------------------------------------------------------------------

* The calculation order in previous versions was based on the station numbering.

 This resulted in case of the use of bleed-in-flow that bleeds were needed, but

 not calculated yet for non-ARP755 station numbering. Design time extensions

 now provide more robust calculation order definition.

 

GSP v10.0.0.4

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Due to the implementation of customised components, the structure of the

 parent classes have slightly changed.

 

New features

--------------------------------------------------------------------------------

* Additional options added in the mixer component to use inlet mach, area or

 velocity data and mixing plane static pressure balance constraint to size

 the mixer at design time.

 

GSP v10.0.0.3

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* The flight/ambient conditions dialog contained a tabsheet with a radiobutton

 selection group to select the unit system. This tabsheet is removed and

 functionality replaced by a combobox on top of the dialog similar to the

 component property windows.

 

Fixed

--------------------------------------------------------------------------------

* Fixed the unit system selection of the flight/ambient conditions dialog.

 

GSP v10.0.0.2

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Added the ability to choose polytropic efficiency for compressor and turbine

 components. This feature enables the engineer to quickly compare gas turbines

 having different pressure ratios.

 

GSP v10.0.0.1

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Acces Violation bug with graph of independent (not linked to model) GSP output

 data tables.

* Problem with Flight/Amb. conditions dialog Transient table grid Autoschrink

 option hanging up GSP, solved: no Autoshrink anymore.

* Problem with resetting transient default time step size after temporary

 time step decrease after user specified number of jacobian updates (adaptive

 time step option in Iteration options).

* Problem with adding rows in Flight/Ambient conditions transient input table.

* Compressor/fan exit temperature calculation with Eta_is improved (eta_is=ratio

 of enthalpies), causes a 0.5 - 1 K change in Texit for most compressors.

 

GSP v10.0.0.0

--------------------------------------------------------------------------------

Caution!

--------------------------------------------------------------------------------

* Since we have implemented new/improved methods to display values in

 numerical fields and grids, converting old models into new models (by saving

 your model with the new GSP 10 version) could be accompanied by an undesirable

 side effect that some data in numerical grids can be set to the default

 values.

 

Improvements

--------------------------------------------------------------------------------

* Graphical output function improved:

 - improved GUI

 - last selected output fields in graphs now saved in settings for next time

   model is opened.

* Improved automatic sizing of column widths in numerical grids and tables (e.g.

 control system schedules).

* An additional graph option has been added to specify if the graph window

 stays on top of the desktop (or not) during steady state series or transient

 calculations. The user has to click in the graph window to update the graph.

 

New features

--------------------------------------------------------------------------------

* SI and Imperial unit systems in input and output data. Using a switch of the

 models general options (or a combobox on the property sheet of a component)

 the input and output can be set in different unit systems. Currently, Imperial

 unit system (Imperial) and International System (SI) have been implemented.

* For the registered version of GSP, a design point sweep component and a flight

 envelope schedule component have been added.

* Carpet plot option to plot DP sweep and flight scheduler data.

* New (inherited) turbine component with additional zooming capabilities at

 turbine stage level.

* For the registered version of GSP, a propeller component supporting fixed

 pitch propellors and constant speed propellors. The latter uses a control

 sheet rather than a control component to gover the turboprop gas turbine.

* Added a button to call the convergence monitor during calculation from the

 simulation progress box.

* The icons of the GSP components will now be updated to the icons present in

 the libraries. Since we use different colors or icons in this release, do not

 be alarmed if your model does not look exactly as it used to look.

 

Fixed

--------------------------------------------------------------------------------

* Implemented sourcecode for the last four options of radiobutton groupbox named

 "Power delivered to shaft in design point" of the turbine's design tabsheet.

 These options enable the user to define the power per turbine in multiple ways

 that will be given to the shaft when multiple turbines have been placed on the

 same shaft.

* The volume fraction specification of the fuelmixer component interpreted the

 fuel incorrectly.

* A procedure to set equilibrium conditions was called at the end of combustor,

 but chemical equilibrium was already calculated earlier on. The procedure that

 set the equilibrium conditions caused elimination of O, H and OH radicals which

 are typically formed at high temperatures, leading in 'less' dissociation and

 a higher temperature. The impact of this bug is small since O, H and OH

 radicals are formed at very high temperatures (this bug would not affect

 models of current in service gas turbines).

 

GSP v9.2.0.1                                                    - March 28, 2003

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Many improvements to the Operating Point Report output:

 Now 5 output data groups can be activated or deactivated for output in the

 model Output Options window Oper. Point report tabsheet.

 A new group has been added: the long awaited 1st version of a station nr.

 oriented data output table with 11 parameters per station.

 This way of presenting data is more familiar for most users than the component

 based output that is now optional. Per default, the station nr. is active

 and the component output is inactive. Change these options per model where

 desired.

* Layout, alignment States and Errors report and Model data report improved.

* Now existing text in GSP Report Editor window is not deleted after closing

 the window. The text will reappear (depending on "Autoclear.." Oper. Pnt.

 Output option) after reopening the window.

* Separate Menu item in Model View menu to open the GSP Report Editor;

 

Fixed

--------------------------------------------------------------------------------

* No duplicate (heat exchanger, recuperator) components in States and Errors

 report and Model data report anymore.

* No inactive states (index 0 or -1) in States and Errors report anymore.

 

GSP v9.2.0.0                                                    - March 25, 2003

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* 'Window snap' on main- and library windows for easy positioning of windows

 along screen borders (snap margin is 10 pixels).

* Improved Heat Exchanger component model. The Supplementary Library now

 includes a dynamic heat exchanger recuperator and a dynamic intercooler model.

 Both models simulate the thermal dynamics (heat soakage) effects of the wall

 material on the gas flow and engine performance. The material properties and

 heat transfer parameters are user specified.

 Wall material thermal dynamics are significant for recuperated engine

 transient performance, as are volume effects (included in most GSP gas path

 components).

 Heat soakage effects (both flows) to outside/external walls are separately

 modelled (as with other components) and also an option. These usually are

 less significant.

 The dynamic recuperator and intercooler component models are available in

 the Supplementary Component library that comes with the registered GSP

 versions. Refer to documentation on the modelling details.

 The Standard Gas path library heat exchanger in the unregisterd GSP now has

 the heat soakage effect omitted.

* GSP STOVL component library and STOVL.MDL demo model added to Registered

 version.

* Improved component model GUI: all items affecting Design point are colored

 navy blue (dark blue) consistently. Changing these properties (not just

 clicking) triggers a switch forcing a new Design point calculation prior to

 subsequent off-design calculations.

* Some component models now have a "NoAutoResetToDesign" switch to inhibit the

 automatic reset to design for that component, even if the global model

 "Auto Reset To Design" option is active. This is convenient in many cases for

 the Load Control component for example if used for turboshaft models, where

 Design load is specified and off-design load is specified 0 to have GSP

 calculate off-design power output into the model's PWshaft global output

 variable.

* Much improved software architecture, with more generic methods (standard

 CalcFlow, Pressure Loss, HeatSink, Volume Dynamics routines) facilitating

 easier use of the CDP and BPL/DLL API's.

 

Fixed

--------------------------------------------------------------------------------

* Problem with re-sizing of convergence monitor window.

 

GSP v9.1.1.15                                                - February 20, 2003

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* Heat exchanger/recuperator model improved with options for specifying

 off-design effectiveness other than with a map. Simple user defined values or

 curves/tables can now be specified by the user in case a map is not available.

* For the registered version of GSP, the split ratio (used in the the splitter

 and the valve/splitter control components) has been changed to split fraction.

 This that a number between 0 and 1 has to be given, where 0 denotes all

 massflow through the core, and 1 denotes all massflow through the bypass. Old

 model design data will be updated to 1 if the value is larger than 1. The

 transient tabsheet of the valve/splitter controller needs to be updated

 manually.

* For the registered version of GSP, an intercooler component and an

 intercooler control component have been added.

* Effectiveness definition of the heat exchanger/recuperator (and intercooler)

 improved:

 Now Effectiveness is corrected with w.cp (mass flow times spec. heat) and

 defined as Eff:=In2.W*In2.Cp*(Out2.Tt-In2.Tt)/(Cmin*(In1.Tt-In2.Tt));

 with Cmin= minimum {In1.W*In1.Cp, In2.W*In2.Cp}

 (old definition was: Eff:=(Out2.Tt-In2.Tt)/(In1.Tt-In2.Tt); )

 Although with recuperators this improvement has not a significant effect in

 most cases it is more consistent with general practice.

 For the intercooler it has a large effect due to the difference in media

 properties.

* Temperature function of enthalpy iteration improved in gas properties model

 (better accuracy in some rare cases).

 

Fixed

--------------------------------------------------------------------------------

* Bug writing composition data to output table.

* Initial tabsheet of turbomachniery components (v9.1.1.14 only) not

 on 'General' problem.

* Access violation problem when cancelling loading a model half-way the load

 process.

 

GSP v9.1.1.14                                                - February 17, 2003

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug opening models in version 9.1.1.13

 

Improvements

--------------------------------------------------------------------------------

* Heat exchanger/recuperator model improved with optional simplified relations

 for effectiveness instead of effectiveness map.

 

GSP v9.1.1.13                                                - February 13, 2003

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Bug preventing calculation of static gas properties at stations (introduced

 from version 9.1.1.11 onwards).

 

GSP v9.1.1.12                                                 - February 5, 2003

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with Generic control (rotorspeed control) as free state in combination

 with some custom components (access violation).

 

New features

--------------------------------------------------------------------------------

* Turbomachinery components (fan, compressor, turbine and custom variants) now

 have extra option for the variable geometry option. Now, besides Nc, also PR

 can be used to schedule the map modifier. So now, VGV/VIGV schedules can be

 specified either as function of Nc or PR. External variable geometry control

 is not activated in version 9.1.1.12 yet.

* Bleed schedule unit to specify a compressor bleed schedule as function of Nc.

--------------------------------------------------------------------------------

 

GSP v9.1.1.11                                                 - January 14, 2003

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with output to table of afterburner efficiency (combustor component)

 parameters (FARoutrel, Minrel, Ptinrel)

* Problem with turbine cooling flow data output

* Problem with static properties calculation at component exit station with A>0

 in case W=0: now also checked whether W>0 (and A>), otherwise all properties

 set to 0 (code unit : giocomp.pas)

 

Improvements

--------------------------------------------------------------------------------

* Turbine cooling parameter naming improved (Parname_CompID_Cooling flow Nr.)

* Generic Control input 'as free state' option for all Generic control derived

 control components

* FuelCtrl component adapted to comply to generic Control input 'as free state'

 option

 

IMPORTANT NOTICES

--------------------------------------------------------------------------------

* Due to the change in the Manual Fuel Control component with regard to the free

 state option, the Model Options and new Fuel Flow input option NEED TO BE

 RESET in all Manual Fuel Control components with the free state model option

 set in prior GSP versions.

--------------------------------------------------------------------------------

 

GSP v9.1.1.10                                                - December 18, 2002

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with reading models with unknown classes (BPL with class not found).

 

GSP v9.1.1.9                                                 - December 18, 2002

--------------------------------------------------------------------------------

No updates to standard version (updates for DLL and Custom libraries only)

 

GSP v9.1.1.8                                                 - December 16, 2002

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with erroneous calculated column titles.

 

GSP v9.1.1.7                                                 - December 11, 2002

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with Calculated columns swapping of last two columns in some cases.

* '0's in calculated columns in break records should be blanks.

 

GSP v9.1.1.6                                                  - December 4, 2002

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Comment field in output tables can be automatically filled with strings

 indicating operating point type (design, steady-state, st.st.series, transient

 etc.) if options checked in Model Oupput options.

* Optional (instead of always) Save dialogs pop ups, to be set in Model General

 Options.

 

GSP v9.1.1.4                                                 - November 27, 2002

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* Default model path in environment options for fast access to your own set of

 models.

* To the licenced supplementary component library two new components have been

 added. A fuel mixer component, and an exhaust component of which the ambient

 pressure can be specified (instead of using the standard ambient pressure

 specified by the flight conditions).

* The fuel mixer component efficiently mixes two different types of fuel (e.g.

 syngas/LCV with natural gas in industrial gas turbines).

* For simulation of an industrial gasturbine having an exhaust heat recovery

 boiler (having a pressure loss over the entry to the exit) the exhaust pres-

 sure of the supplementary exhaust component can be specified. At the moment

 a fixed exhaust outlet pressure is supported, transient will be supported

 soon.

 

Fixed

--------------------------------------------------------------------------------

* Fixed error message of the GC inlet component during design calculation.

 

Improvements

--------------------------------------------------------------------------------

* File/Build version number now in new Status bar at bottom of library windows.

* Option in Model Output Options to add default Comments indicating simulation

 model (i.e. Design, Steady State, St.St. Series of Transient).

* Now Output parameters in Component window Output tab sheets that are activated

 by "Map operating curve par.s" check box, are de-activated when latter option

 is on to avoid confusion.

 

GSP v9.1.1.3                                                 - November 22, 2002

--------------------------------------------------------------------------------

Fixed

--------------------------------------------------------------------------------

* Problem with random symbols in curves beyond 8th curve in graphs.

* Problem with wrong curve numbers beyond nr. 9.

 

Improvements

--------------------------------------------------------------------------------

* Graph legend improved, line style visibility improved.

 

 

GSP v9.1.0.3                                                - September 13, 2002

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* The progress box now shows two bars: one for the total simulation progress and

 one showing how many iterations per step are remaining.

* Automatic adding of numbers to Component model names when adding/copying

 components to a model in order to avoid duplicates.

* Steady State output table now has 'Point' nr field to identify individual

 points. With a steady-state series calculation, this value corresponds to the

 time value used for specifying the parameter sweep input (using the transient

 input functions).

* Capability to generate State-Space model ABCD matrices added (this feature

 is not available in the standard version and is activated only when the

 specific ABCD matrix generator custom component library is available).

* Capability to call GSP from 3rd party programs through API/DLL (this feature

 is not available in the standard version).

* Chemical equivalence ratio can now be specified for output in combustor

 component.

 

Fixed

--------------------------------------------------------------------------------

* Turbine component Map beta now added to output options.

* Model Output Options Window sizing problem solved.

* Component Nr. in Model form was not always refreshed to the correct value.

* After changing between standard map and other map, it could be that the design

 point rectangle could not be moved.

 

 

GSP v9.1.0.2                                   - Not released, internal use only

--------------------------------------------------------------------------------

New features

--------------------------------------------------------------------------------

* When opening models, the model Window Left and Top are reset to 0 if set to

 negative values due to very large Widths and Heights at the time of storing to

 file.

* During installation, now the PDOXUSRS.NET file is copied into the Windows

 system root (usually C:\). This file is normally created upon first use of the

 Borland Database Engine (BDE) after generating a simulation output table.

 However, this is impossible when GSP is run with low Windows user access

 rights. To prevent this the file is copied with full user acces rights into

 the root folder.

* The \temp folder for temporary BDE paradox (*.db) table files is now set to

 the general Windows temp folder, to prevent access rights problems.

* "Determined by Map" deleted from Compressor component bleed type options. This

 option is obsolete due to the use of bleed flow control system models in GSP

 custom components.

* If a map name has been changed, GSP requires a recalculation of the design

 point now to enforce re-calculation of map scaling factors. This prevents

 errors and erroneous results.

* Due to the implementation of new Windows API's now MS Windows DCOM v1.2 is

 required when using W95 or W98. When using Windows NT Service Pack 4 is

 required as mimimum for running GSP.

 Note that this only will be an issue on old systems that have not been updated

 on a normal basis. If GSP normally starts up, no action needs to be taken.

 

Fixed

--------------------------------------------------------------------------------

* In some cases, the graph scales in graph output windows after zooming were

 wrong, due to misplacement of the axis major tic labels.

* The problem with output at large (time) output intervals combined with small

 calculation (time) step for steady-state series calculation has been fixed.

 

Improvements

--------------------------------------------------------------------------------

* The handling of Null value fields by the Calculated Expression parser has been

 improved. Null values and empty <break> records in output tables now just make

 the parser output Null values for the result fields. This improvement prevents

 'invalid fields' in Calculated Expression table (Output options) if the last

 row in the output table is an empty break record.

* Break record rows in the output tables are now indicated by the "<break>"

 string in the 1st Comment column.

 

 

GSP v9.1.0.1                                                 - February 20, 2002

--------------------------------------------------------------------------------

Improvements

--------------------------------------------------------------------------------

* The parameters Pshock, Tshock, Vshock and Mshock (static P, T and velocity and

 Mach right before normal shock) now are always set to static nozzle exit

 conditions if there is no normal shock inside the divergent part of the

 nozzle, to indicate they have no meaning.

 

 

GSP v9.1.0.0                                                     - January, 2002

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* The solver now automatically adapts (halves) (time) step size if a solution

 can not be found for transient and steady state series calculations after a

 user specified number of unsuccesful inverse Jacobian updates. Step size is

 halved until convergence is realized and then reset to specified size after a

 (user specified) time. See the Model window Options|Iteration.

* If transient and steady state series calculations are aborted due to errors

 and/or convergence problems, the user is asked to 'attempt continued

 calculation with model reset and new jacobian' to directly continue

 calculation (instead of having to restart the calculation at the last

 timestep). A model reset and new jacobian results in succesful continuation

 in many cases.

* Oscillation control for better convergence. In the Model window Option|

 Iteration oscillation control can be used either per single error variable

 (correction step factor PVR is adapted as function of oscillation of single

 highest error variable) or for all error variables and states simultaneously

 (correction step factor PVR is adapted as function of oscillation of any

 highest error variable, "multiple states" option). Use the Convergence monitor

 to see the effect of these options.

* Consistent with standard functions in Windows, function key F5 can now also be

 used to refresh output graphs.

 

Fixed

--------------------------------------------------------------------------------

* Both heat-exchanger pressure loss maps used the map file for flow 1, even

 though the displayed filenames were different.

* When the transient calculation was not able to find a valid solution/operating

 point, the model was not correctly reset to the last valid time for

 continuation of simulation. This caused problems in only a few cases.

* The statusbar reported transient at the steady state calculation during the

 first transient point as stabilization point.

 

Improvements

--------------------------------------------------------------------------------

* Formats for calculated columns are now more appropriate and include units

 (when non-SI) in output tables and operating point report.

* The convergence unit now also displays the calculation detail level (after

 convergence, GSP always performance an additional 'high-detail' level

 calculation with detailed gas model relations; the 'low-detail' mode is used

 for fast iteration towards convergence).

* The states and errors report now reports the state and error at the point

 where the Jacobian is determined. Consistent with Windows functions, during a

 design calculation the cursor is now changed to an hourglass.

* In the standard generic Governor and PT Governor control components, instead

 of using a reset integrator which resets the integral signal to 0 when

 changing sign, now a limited reset integrator is used with trimmer output

 limited to the accel/decel schedule limits.

* In the standard generic Governor and PT Governor control components, fuel

 flow can now be limited to an absolute maximum or minimum.

 

 

GSP v9.0.0.2                                   - Not released, internal use only

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* Cool!: Convergence monitor to help solve iteration/convergence problems and

 tune iteration control options/parameters. In the model window, click

 View|Convergence.

 

Improvements

--------------------------------------------------------------------------------

* User settings are now saved in HKEY_CURRENT_USER in Windows registry instead

 of HKEY_LOCAL_MACHINE in order to avoid problems with limited registry write

 access rights for users with lower than adminstrator rights.

 

 

GSP v9.0.0.3                                                 - December 13, 2001

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* Manual Fuel Control input model can now be changed after Design calculation.

 No recalculation of Design point required anymore after changing Model

 options, except when changing 4th option: Fuel flow must remain either manual

 input or free state. For example, this option is practical if the user wants

 to start calculating off-design points using fuel flow as input but wants to

 change to direct specification of TT4 instead at some point in the off-design

 analysis session.

 

 

GSP v9.0.0.2                                   - Not released, internal use only

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* Cool!: Convergence monitor to help solve iteration/convergence problems and

 tune iteration control options/parameters. In the model window, click

 View|Convergence.

 

Improvements

--------------------------------------------------------------------------------

* User settings are now saved in HKEY_CURRENT_USER in Windows registry instead

 of HKEY_LOCAL_MACHINE in order to avoid problems with limited registry write

 access rights for users with lower than adminstrator rights.

 

 

GSP v9.0.0.1                                   - Not released, internal use only

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* Now ambient air humidity and composition data can be requested for output,

 also in the operating point report.

 

Fixed

--------------------------------------------------------------------------------

* Calculation of Standard Inlet component exit static conditions error with

 Aexit specified larger than 0.

* Ambient flight conditions humidity specifications are now added to the Model

 data report.

* Error in interpolation of ambient/flight conditions in transients with

 changing atmosphere model types (e.g. ISA, ISA+ and Custom).

 

Improvements

--------------------------------------------------------------------------------

* Convenient positioning of cursor at begin or end for report generation for

 Operating point output, Model data and States and Errors.

* To prevent interference, operating point report option now always disabled

 when enabling the States and Errors and Jacobian Debug output options.

 

 

GSP v9.0.0.0                                                - September 14, 2001

--------------------------------------------------------------------------------

New Features

--------------------------------------------------------------------------------

* The Calculated Column function is now improved and a powerful equation parser

 is added to enable the addition of calculated columns with virtually any

 mathematical expression of GSP output data columns. The expressions are now

 saved with the model so you do not need to re-enter expressions again after

 re-opening a model. Add a calculated column as before in the output data

 tables. You may now also edit the expressions in the Model Output options

 under the 'Calculated Expressions' tab.

 Notes: In the expressions, decimals point in station numbers are replaced by

 '$' to avoid confusion with decimal points in expression constants. Spaces,

 blanks and some other special characters are illegal in expressions.

* In the output graphs, with Autoscale disabled in the 'Axes/Layout' Graph

 Options, the number of decimals in the axis labels was often inconvenient. The

 number of axis label decimals can now be user specified with Autoscale

 disabled.

* Whole engine performance result parameters such as net thrust FN, Thrust and

 specific fuel consumption TSFC are now optional (were fixed in the output,

 also for non-aero engines), to be specified in the Model Output options at

 'Global output parameters'. Here also output can be requested for total fuel

 flow, total shaft power output and total shaft specific fuel consumption SFC.

 TSFC is now in [kg/Nh], SFC is in [kg/kWh]. For other units, use the

 calculated column feature to convert. For calculating total turbine shaft power

 output, use this option instead of Psurplus (used for this purpose in previous

 versions).

* Fuel flow in the Manual Fuel control component can now be specified as a 'free

 state' in order to calculate an off-design operating point with (instead of

 user specified fuel flow Wf, combustor exit temp. or fuel-air ratio) an

 alternative user specified power setting condition such as turbine rotor speed

 and/or power load ('Power balance at rotor speed' turbine component model

 option). Using the Fuel flow as a free state always requires the setting of

 another component's option (such as 'Power balance at rotor speed' in the

 turbine to provide an extra error variable to maintain an equal number of model

 state and error variables). If this requirement is not met (no corresponding

 settings in two components), a 'Model configuration inconsistent' (Nstates<>

 Nerrors) error is reported.

* In the 'Gas generator fuel control' and 'Turboshaft fuel control' component

 models, the 'Fully trimmed steady state' option calculates steady state

 performance in fully trimmed condition (proportional governor droop error fully

 compensated by trimmer). As with the 'Power balance at rotor speed' option

 mentioned above, this enables calculation of fully trimmed steady state

 operating points at user or control system specified rotor speeds and shaft

 loads. Important:

 1) For the 'Gas generator fuel control', both a state and an error variable are

 added with the 'Fully trimmed steady state' option: the trimmer output then is

 a state and the shaft speed error (Ndemand-N) is the error. No additional

 component needs to be modified and fully steady-state points with a fully

 trimmed gas generator speed can be calculated.

 2) The 'Turboshaft fuel control' includes a 'Gas generator governor control'

 for controlling gas generator power (or speed) based on the power turbine

 control logic. The 'Gas generator governor control' logic is similar as

 described above in 1) including a gas generator 'Fully trimmed steady state'

 option. For the Power turbine control logic (in the "PT control" tab sheet)

 there is another 'Fully trimmed steady state' option. This option works

 different from the gas generator case: only a state is added for the the

 trimmer output. No error variable is added and an error variable has to be

 provided by another component. This will normally be from a (power) turbine

 component, i.e. a turbine component with the Power turbine option set and the

 'Power balance at rotor speed' option set to add the error variable. This

 enables the calculation of fully trimmed free-power turbine turboshaft steady

 state points (the free power turbine power matching the power load). Normally

 the load would be varied and the 'Fully trimmed steady state' would provide

 fully trimmed control states providing sufficient fuel to maintain free power

 turbine rotor speed at this load. Please note that this option only works for

 steady-state calculations !

* The turbine component now has the 'Power balance at rotor speed' option

 mentioned above to calculate other engine (free state) parameters such as fuel

 flow or a control system variable (e.g. trimming signal) with the specified

 rotor speed as input. Any compressors or fans attached to this turbine must

 then have the 'Externally controlled' option set.

* The compressor and fan components and descendant component model classes now

 need the 'Externally controlled' option set when the shaft speed is not a free

 state and determined by another component such as a turbine with the 'Power

 balance at rotor speed' option set.

* Failure of correct setting of the above mentioned options for fuel flow,

 control, compressor and turbine components in a single model will be reported

 as either an error due to the number of model states and (equation) errors not

 being equal or an error detecting more than one component trying to (user)

 specify the same shaft.

* Dynamic viscosity has been added as output parameter.

* If output parameters do not yet exist in existing tables, a dialog reports

 which parameters are not present in the table. User can then choose whether

 to go and disregard these additional parameters, or to create a new table.

* Calculated columns are displayed with different background color (standard

 soft yellow)

* The intro sound when starting GSP can be disabled in the Environment options.

* Registry settings from previous GSP 8 versions are automatically converted to

 9. This allows you to keep the reopen functionality for files and tables

 (If you have previously disabled the intro sound when starting GSP, this

 setting will not be effective the first time you start GSP 9).

* Control schedule and transient input time functions can now be presented in

 graphs for efficient verification and documentation (graph printing) of input

 data.

* A linestyle form has been added to set the linestyle and symbol properties for

 steady state and transient graphs. These linestyle and symbol properties are

 also used for operating curves in component maps. The linestyle and symbol

 properties are saved with the model data.

* Component output has been extended with gas properties as Cp, R, gamma,

 Reynolds number, density and Reynolds number index.

* A 'Model Notes' window is now available under the Model Data menu in the model

 window to store user information for the model such as short model

 descriptions, information of the developer etc. The sample models all have

 short descriptions in the Model Notes.

 

Fixed

--------------------------------------------------------------------------------

* Calculated columns displayed 0 values for empty rows, preventing the

 indication of a new data series for a separate curves.

* In some cases, the effect of water or steam injection into the combustor was

 miscalculated. Calculation has now been thoroughly validated.

* The RNI (Reynolds Number Effect) was not applied to combustor maps in previous

 versions.

* Bug fixed in heat exchanger / recuperator pressure loss calculation.

* The heatexchanger operating curve could not be drawn in the map, since

 checking "map operating curve par s." in the heatexchanger selected the

 "corrected inflow" instead of the "normal inflow".

* In the Manual Variable Exhaust Nozze Control the relative throat value could

 become too large during simulation, resulting in an error. It is now limited

 between a minimum and maximum.

* When closing a model form after deleting a component, user was not requested

 to save the model.

* A memory leak from not freeing components when deleting or closing columns in

 a numerical grid has been resolved.

 

Improvements

--------------------------------------------------------------------------------

* The output format for Temperature, Cp (specific heat), R (gas constant) and S

 (entropy) is now with 2 decimals instead of 1.

* A large number of error/warning messages are now explained using the GSP

 on-line help. Click the help button in the error/warning message window.

* The Calculated Column function is now improved, see the 'New features'

 section.

* Result data output tables have now two-line title headers with the units

 (only if no SI) on the second line.

* Output parameters are now shown in UI elements such as Combo-boxes etc.

 without the units. The units are added only (if non SI) in output items such

 as the table headers and graph axis titles.

* A Model data 'States and errors report' (for Model States and Error variables

 layout troubleshooting) can now also be generated for the Design point

 calculation.

* Pressure altitude entry Zp in Model Flight/Ambient Conditions window now

 invisible for Custom (non standard atmosphere) conditions (because it then has

 no meaning).

* Interpolation between two Flight/Ambient Condition transient points of

 different types is (ISA, ISA+ or Custom) improved. In previous GSP versions

 the type of the 1st point was maintained until the next point where the

 condition type was switched. This could cause discontinuities and made the use

 of different condition types in a single transient troublesome. Now automatic

 interpolation is applied to all ambient condition parameters, thereby allowing

 all kinds of mixing of ISA, ISA+ and Custom conditions type in a single

 transient.

* Better Fundamental Pressure Loss calculation error reporting. If unrealistic

 data are entered for a combustor (e.g. a very small flow cross area), GSP now

 reports the cause of failure of finding a valid flow state condition for the

 Fundamental pressure loss calculation.

* The heat exchanger / recuperator component definition of effectiveness has

 changed:

   used to be : Eff:=(In1.Tt-Out1.Tt)/(In1.Tt-In2.Tt);

 with In1/Out1 the HOT flow entry and exit stations. Now it is more compliant

 to common practice with recuperators and instead of the hot flow T drop, now

 the COLD flow T rise is used to relate to effectiveness:

    Eff:=(Out2.Tt-In2.Tt)/(In1.Tt-In2.Tt);

 with In1/Out1 the HOT flow entry and exit stations.

* In all graphs windows, zooming has been improved: Inadvertent zooming after

 mouse-clicks and very small mouse-moves is now prevented. Zooming only occurs

 upon mouse-moves from top-left to bottom-right,larger than approx. 5% of graph

 height/width. In all graphs windows, pressing Esc or mouse-moves from

 bottom-right to top-left now unzoom.

* In the Output tab of the Manual Fuel Control component, the descriptor has

 been changed into a more general term.

* Help file has been made more consistent with the now available User Manual.

* Position and symbol of 'clear' button in Output table has been changed for

 consistency with transient input table. The 'clear' button is now marked with

 an 'X' caption.

* Buttons in Output tables now have captions added to the glyphs for clearer

 indication of their function. With glyphs only (in previous version) too many

 users had problems using the buttons.

* Empty tables can now be opened, to allow usage of existing (saved) data in a

 model. This adds the option of plotting existing data, to be appended to the

 empty table, in a component map of a model for which no simulations have been

 run (yet).

* A "Reopen" list is now implemented for result tables, similar to the reopen

 list for previously opened and closed Model files in the file menu. This

 enables quick reopening of previously saved result tables without the need to

 search through various folders/directories.

 

 

********************************************************************************

2. HINTS

********************************************************************************

* Use the Convergence monitor

* Use the 'Global output parameter' options in the Model Output options to

 specify requested output for parameters such as net thrust FN, Thrust specific

 fuel consumption TSFC, fuel flow, shaft power SFC. For calculating total

 turbine shaft power output, use this option instead of Psurplus (used for this

 purpose in previous versions).

* Set printing to Black & White (in Environment options in GSP Main window) when

 coloured curves do not appear.

 

 

********************************************************************************

3. KNOWN ISSUES

********************************************************************************

* With some printer drivers, coloured curves do not show: see Hints.

* With the new video system requirement of 64K colors for version 8.2.0.3 and

 up, Help file images are not displayed properly with less than 64K colors.

 

 

********************************************************************************

4. OTHER

********************************************************************************

* The new policy of GSP 11.0 and higher has changed with respect to previous

 versions. The 'Light Edition' (LE) used to hold the basic gas path components

 and the basic control components. From version 11.0 all additional components

 (supplementary and STOVL components library) will be accessible in the GSP LE

 versions. Modellers will be able to configure/set up models with these

 components, but running will be prohibited. Running of models containing

 registered components requires a license. This new policy allows potential

 customers to browse through available components to evaluate whether these

 satisfy the modelling needs. If not please contact info@gspteam.com for

 additional questions.

* The 'Multi-reactor' combustor model option has been removed from the standard

 component libraries. It is now part of the GSP Generic Components Library for

 registered users. This is part of the policy to issue GSP 9.0 free with full

 simulation functionality with the standard library but with some modelling

 capabilities omitted.

 

 

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For questions or comments, please contact:

 

The GSP Development Team

Aerospace Vehicles, Gas Turbines & Structural Integrity (AVGS)

National Aerospace Laboratory NLR

P.O. Box 90502                Anthony Fokkerweg 2

1006 BM Amsterdam        1059 CM Amsterdam

 

Email    : info@gspteam.com

Internet : http://www.gspteam.com

 

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