Path: ACPro/ACPerformance
% Compute flight equilibrium.
Ground effect is included and the scale factor is the square root of s.
This uses DragCoeff for the drag coefficients. If the altitude is zero
then the gravity force is assumed to be zero.
Type FlightEquilibrium for a demo
--------------------------------------------------------------------------
Form:
d = FlightEquilibrium( gamma, h, v, d )
--------------------------------------------------------------------------
------
Inputs
------
gamma (1,:) Flight path angle (deg)
h (1,:) Altitude (m)
v (1,:) Velocity (m/s)
d (1,1) Data structure
.mass (1,1) Mass (kg)
.s (1,1) Reference area (m^2)
.cLAlpha (1,1) Lift coefficient
.length (1,1) Representative length (e.g. mean chord) (m)
.oswaldEff (1,1) Oswald efficiency factor (optional)
.aspectRatio (1,1) Aspect ratio for wing (length/mean chord)
.thickness (1,1) Ratio of length to thickness
.m1Peak (1,1) Peak at M = 1 an alternative to zetaTrans
-------
Outputs
-------
d (1,1) Data structure
.m (1,:) Mach number
.rho (1,:) Atmospheric density (kg/m^3)
.t (1,:) Stagnation temperature (deg-K)
.q (1,:) Dynamica pressure (N/m^2)
.drag (1,:) Drag force (N)
.lift (1,:) Lift force (N)
.thrust (1,:) Thrust force (N)
.cD0 (1,:) Drag coefficient
.kI (1,:) Induced drag coefficient
--------------------------------------------------------------------------
AC: ACData/ACTConstants ACPro: ACProAerodynamics/CDSkinFriction ACPro: ACProAerodynamics/DragCoeff ACPro: ACProAerodynamics/FormDragCoeff ACPro: ACProAerodynamics/GroundEffect ACPro: ACProAerodynamics/InducedDragCoeff ACPro: ACProAerodynamics/PrandtlGlauertCorrection AerospaceUtils: AeroData/AtmData AerospaceUtils: AtmosphericCalculations/AtmGamma AerospaceUtils: AtmosphericCalculations/TemperatureStagnation SC: SCData/sCTConstants Common: Atmosphere/StdAtm Common: CommonData/Constants Common: CommonData/SwooshWatermark Common: CommonData/xSplashSmall Common: Database/Constant Common: General/CellToMat Common: General/DeleteCell Common: General/MatToCell Common: General/Watermark Common: Graphics/NewFig Common: Graphics/Plot2D Common: Graphics/PltStyle Math: Analysis/Logistic Math: Trigonometry/CosD Math: Trigonometry/SinD
Back to the ACPro Module page