| Compressor Input | Description |
| GasPthCharIn | Gas Path Characteristics Input, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| Rline | R-line, position on compressor map
Determines pressure ratio, efficiency, and gas path flow. The value for this variable will need be solved for by driving flow error across the engine to zero. |
| Nmech | shaft speed [rpm] |
| Compressor Output | Description |
| CustBldsCharOut | Customer or flow based Bleeds Characteristics Output,
[5 x 1] vector for each customer bleed (total #cbleeds *5 x 1) consisting of the following repeating format: - W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] This feature must be enabled, see Bleed tab variable (CBLDEN_M) definition |
| FBldsCharOut | Fractional Bleeds Characteristics Output,
[5 x 1] vector for each customer bleed (total #fbleeds *5 x 1) consisting of the following repeating format: - W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] This feature must be enabled, see Bleed tab variable (FBLDEN_M) definition |
| GasPthCharOut | Gas Path Characteristics Output, 5x1 vector consisting of:
- W - gas path flow [pps] - ht - enthalpy [BTU/lbm] - Tt - Total Temperature [degR] - Pt - Total Pressure [psia] - FARc - Combusted Fuel to Air Ratio [frac] |
| NErr | Normalized Error [frac], in a typical system this will
be driven to zero by an iterative solver |
| TrqOut | compressor Torque Output (lbf*ft), negative value for a compressor. |
| C_Data | Compressor internal calculation Data, 2x1 vector including:
- SMavail - Stall Margin Available [%] - Test - Compressor internal calculation Data |
| Compressor Mask Variablet | Description |
| X_C_RlineVec_M | compressor map Rline vector(nx1) |
| Y_C_NcVec_M | compressor map corrected speed vector(mx1) |
| T_C_Map_WcArray_M | compressor map flow array (Wc = f(Nc, Rline))(mxn) |
| T_C_Map_PRArray_M | compressor map pressure ratio array (PR = f(Nc, Rline))(mxn) |
| T_C_Map_EffArray_M | compressor map efficiency array (Eff = f(Nc, Rline))(mxn) |
| s_C_Nc_M | corrected speed scalar constant |
| s_C_Wc_M | corrected flow scalar constant |
| s_C_PR_M | pressure ratio scalar constant |
| s_C_Eff_M | efficiency scalar constant |
| CBLDEN_M | Customer or flow based Bleed Enable [check - enabled] |
| C_CBD_M | Customer or flow based Bleed Demand[pps](cbx1) |
| C_CBFht_M | Customer or flow based Bleed Fractional enthalpy[frac](cbx1) |
| C_CBFPt_M | Customer or flow based Bleed Fractional Total Pressure[frac](cbx1) |
| FBLDEN_M | Fractional based Bleed Enable [check - enabled] |
| C_FBD_M | Fractional Bleed Demand[frac](bx1) |
| C_BFht_M | engine Bleed Fractional enthalpy (bx1)[frac](bx1) |
| C_BFPt_M | engine Bleed Fractional Total Pressure (bx1)[frac](bx1) |
| X_C_WcSurgeVec_M | Compensated flow Surge Vector [pps](sx1) |
| T_C_PRSurgeVec_M | Surge line Pressure Ratio Vector [frac](sx1) |
| iDesign_M | Design fork (0, 1, 2)
0 - iDes Enabled, Calculate compressor map scalars based on design variables When iDesign is set to 0, scalar constants from the Map tab will not be used. Scalars calculated will be saved in the specified file (FVar_M). 1 - Scalar variables will be overwritten (mask Initialization) with values from a specified file (FVar_M). When iDesign is set to 1, scalar constants from the Map tab and the Design values from the iDesign tab will not be used. 2 - Scalar variables from the map tab will be used as the map scalars. When iDesign is set to 2, scalar constants from the Map tab will be used; Design values and file definitions from the iDesign tab will not be used. |
| NcDes_M | map Design Corrected Shaft Speed [rpm], design point speed used in map |
| EffDes_M | Design Efficiency [frac], actual design point compressor efficiency |
| PRDes_M | Design Pressure Ratio [frac], actual design point compressor PR |
| RlineDes_M | map Design Rline, design point Rline used in map |
| FVar_M | File name for iDes Variables |
| SVar_M | iDes Variable Surname |
| NcNm_M | iDes Nc scalar variable name |
| WcNm_M | iDes Wc scalar variable name |
| PRNm_M | iDes PR scalar variable name |
| EffNm_M | iDes Eff scalar variable name |