| Nozzle 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] |
| Pamb | Ambient static Pressure [psia] |
| Nozzle Output | Description |
| Wout | gas path flow [pps] |
| Fg | Gross thrust [lbf] |
| NErr | Normalized Error [frac], in a typical system this will
be driven to zero by an iterative solver |
| N_Data | Nozzle internal calculation Data |
| Nozzle Mask Variable | Description |
| N_TArea_M | Nozzle Throat Area [in^2] |
| N_EArea_M | Nozzle Exit Area [in^2] |
| N_FL_M | Flow Loss Across Nozzle (%) |
| X_N_TtVec2_M | Nozzle Total Temperature Vector (X-axis for TG calc)(ax1) |
| T_N_TGArray_M | Nozzle Thermal Growth Array (TG = f(Tt))(ax1) |
| X_N_PEQPaVec_M | Nozzle PE/Pa Vector (X-axis)(bx1) |
| T_N_CdThArray_M | Nozzle CdTh Array, Throat blockage factor [frac](CdTh = f(PEQPa))(bx1)
0 - Fully Blocked, 1 - Fully unblocked |
| T_N_CvArray_M | Nozzle Velocity Coefficient Array (Cv = f(PEQPa))(bx1) |
| T_N_CfgArray_M | Nozzle Thrust Coefficient Array (Cfg = f(PEQPa))(bx1) |
| X_N_FARVec_M | Nozzle Fuel to Air Ratio Vector(X-axis)(cx1) |
| T_N_RtArray_M | Nozzle Gas Constant, R, Array (R = f(FAR))(cx1) |
| Y_N_TtVec_M | Nozzle Total Temperature Vector (Y-axis for Gamma calc)(dx1) |
| T_N_MAP_gammaArray_M | Nozzle Map Gamma Array (Gamma = f(Tt,FAR))(dxc) |
| iDesign_M | Design fork (0, 1, 2)
0 - iDes Enabled, Calculate nozzle throat area based on design variables When iDesign is set to 0, N_TArea_M from the General tab will not be used. Throat area calculated will be saved in the specified file (FVar_M). 1 - nozzle throat area variables will be overwritten (mask Initialization) with values from a specified file (FVar_M). When iDesign is set to 1, N-TArea_M from the General tab and the Design values from the iDesign tab will not be used. 2 - Nozzle throat area from the General tab will be used in the nozzle module. When iDesign is set to 2, N_TArea_M from the General tab will be used; Design values and file definitions from the iDesign tab will not be used. |
| WDes_M | Design flow[pps] |
| FVar_M | File name for iDes Variables |
| SVar_M | iDes Variable Surname |
| AthNm_M | iDes nozzle throat area variable name |
| AxNm_M | iDes nozzle exit area variable name |