The Output options menu item provides control over what output GSP generates and whether confirmation is asked for different types of simulation:

Output Parameters

Central place to set (most of) the output option simultaneously or per component

•Clear all output parameters for
Clear the options for either All Model Components, Flight/Ambient Conditions, or Global Outp. Note that this cannot be undone!

•Set output parameters for all modeling components (if option exists)
Three tab sheets are available to centrally set the output parameters for Components, Flight/Ambient Conditions or System Performance.

•Components
Depending on the selected component, all gas path components or all turbo components (specify in the combo box in the lower left corner) the output will be changed accordingly to the selected options when the apply button (in the lower right corner) has been pressed. Note that changes cannot be undone! Note that the Map oper.crv.par.s option will not grey out the corresponding map options as in the regular component output data input windows due to class/object and inheritance issues. Functionally this option actually sets the corresponding output options, but does not grey it out in the central component output window!

•Flight/Ambient Conditions

•System Performance

Specify overall system performance output parameters:

•Total; total/overall engine parameters

•total fuel flow Wf (for example the total of primary and afterburner fuel flow)

•total intake airflow W (sum of all intake airflow values)

•total exit area A (sum of all exhaust exit cross sections)

•OPR, Overall Pressure ratio defined as Pt3/Pt2 (Combustor total entry pressure/First compressor total entry pressure)

Thrust; typical jet engine parameters:

•total Ram Drag RD, total ram drag calculated from all inlets, usually used to calculate total net thrust

•total gross thrust FG, the total of all exhaust nozzle's gross thrust values

•total net thrust FN = total FG - total RD

•thrust specific fuel consumption TSFC = Wf / FN (SI: [kg/(N h)]; Imperial: [lb/(lbf h)])

•installed performance parameters

Shaft power; typical turboshaft engine parameters:

•total shaft output power (output parameter name is PWshaft), PWshaft is the total of ALL engine/model system shaft power outputs

•(shaft power) specific fuel consumption SFC = Wf / PWshaft (SI: [kg/(kW h)]; Imperial: [lb/(hp h)])

Output Tables

•Output to case tables active
Enable/disable output to table

General

•Add case node number/name to comment
Adds the node number, or the name of the simulation case for quick reference in front of the comment

•Add user specified text to comment
Adds a user specified comment for quick reference behind the comment text, select a custom string or a timestamp.

•Curve numbering
● Treat <case-break> as <group> in renumbering
Use the <case-break> to count as a <group> break when renumbering multiple simulation case data tables
● Restart curve number counting on <group> break
Restart the curve numbering when a <group> break is found in the data table

Design Point

•Output to table
Check to output the DP calculation results to the output table

•Confirm single point DP table output
Confirm table output at single Design point calculations

•Confirm initialization DP table output
Confirm table output at Design point calculations that have been completed to initialize off-design calculations.

•Automatic table pop-up
Table window receives focus when the calculation finishes so that the window become visible.

•Add break between Init. Design and St.St.
Automatically add break after the initial Design point calculation table output preceding the Steady-State output.

Steady State

•Output to table
Check to output the OD St. St. calculation results to the output table

•Confirm single point table output
Confirm table output at single OD / Steady-state point calculations

•Automatic table pop-up
Table window receives focus when the calculation finishes so that the window become visible.

Transient/Series

•Automatic table pop-up
Table window receives focus when the calculation finishes so that the window become visible.

•Add break before new series
Automatically add break before output of a new St.St. Series or Transient starts

Default Comments in tables

Select to insert a default comment per output data row for Design, Steady State, St St. Series, and/or Transient.

Output Parameters

•AS755 Station numbering
This contains the interface to a lookup table to map the older standard floating point station numbers to the current standard 3-digit station numbers.
The Alternative station number checkbox controls whether the alternative station is used in output parameters or not. For display of the 3-digit station number, General options

•

Gas composition

Specifies output for each component in the gas composition. Output of the gas composition can be in mass percentage (Mass%) or volumetric percentage (Vol%). Check specie to add this specie to the output table when the output parameter to output gas composition is checked on the Output tab sheet.

Check add FAR (Fuel Air Ratio) to include the FAR output parameter. Note that for showing the FAR parameter the Gas comp. in or out option of the component property window has to be selected.

Oper.Point report

General

These options control whether and how output is sent to the Text output report window:

•Automatic Report pop-up
Pop-up when finished writing to the report editor

•Omit no-output components

If checked component output is ignored when no output parameters are selected for that component in order to avoid component headers without output data.

•Auto-clear existing text report

If selected, the report text is cleared before every new calculation.

•Append to existing text

If selected, the report text is appended to the existing report text for every new calculation.

•Confirm saving report on exit

If selected, a confirmation dialog is shown to save the report when closing a project.

Output data groups

Options to include/exclude data in operating report, or how the data is formatted

•Ambient/Flight conditions
Include the Ambient/Filght condition parameters

•Station oriented output table (W, Tt, Pt, Wc per engine station)
Output data formatted per station (this is the default setting)

•Component oriented output table (all data per component)
Output data formatted per model component

•Global system performance
Include system performance parameter data

•Calculated Expressions
Include the calculated expressions results

Calculated expressions

This list sums the definitions for added calculated columns. The expressions are saved with the model and are automatically recalculated after re-opening a model and running simulations. If the expression cannot be calculated (for example because output fields have been deleted or definitions/component nrs. changed), the status field indicates it as invalid and the expression requires adaptation. Otherwise OK indicates a successfully evaluated expression. Use this interface to edit/create/delete calculated expressions.

Debug

•Debug output options
Advanced feature to display information on the iteration process, useful for models having difficulty in reaching convergence.

•Debug output after error
Do enable debug output info to the Report editor

•Confirm Debug output
User confirmation to output the debug information

•States, Errors during iteration
Do output the state/error values during iteration

•Jacobian's during iteration
Do output Jacobian matrix during iteration

•Error log options

•Log errors in model text report
Do log all errors in Report editor

•Automatic error log pop-up
Do pop-up the Report editor

•Stop on and report....

•Chem. Equilibrium calc. errors
Terminate calculation and report error

Output Identification

•Derive parameter ID from
Component based output parameter names include the unique name of the component or the component ID (number).

•Warn on duplicate output parameter ID's
Warn if duplicate parameter ID/name found, such as TT2 coming from both and Inlet (exit station 2) and Compressor (entry station 2).Normally the parameter values are identical so this option can safely be unchecked in most cases.

Formats

GSP has specific formatting, scaling rules and unit strings for a list or predefined parameter types and both SI and imperial units (set by the Units settings in the General options or per component in the Component unit system), covering most in- and output parameters listed in the Output options Formats tab sheet (click Reset to standard if the table is empty). These predefined settings can be user adapted. E.g. when modeling small gas turbines, or small bleed flows more digits than the default may be required. For micro turbines one would like to use g/s (grams/second) instead of kg/s for mass flows and change the scale factor to 0.001. See format description for an explanation on parameter formatting strings.

•Use custom formats
Activate this option to activate the adapted formatting, scaling and unit strings.

•Reset to standard
Press button to reset the table to default values, or in case of an empty table populate the table with the default settings.