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Correct VEAS to use standard day SL density #900

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Merged
bcoconni merged 1 commit into from
Apr 28, 2023
Merged

Correct VEAS to use standard day SL density #900

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1 change: 0 additions & 1 deletion src/FGFDMExec.cpp
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Expand Up @@ -464,7 +464,6 @@ void FGFDMExec::LoadInputs(unsigned int idx)
case eAuxiliary:
Auxiliary->in.Pressure = Atmosphere->GetPressure();
Auxiliary->in.Density = Atmosphere->GetDensity();
Auxiliary->in.DensitySL = Atmosphere->GetDensitySL();
Auxiliary->in.PressureSL = Atmosphere->GetPressureSL();
Auxiliary->in.Temperature = Atmosphere->GetTemperature();
Auxiliary->in.SoundSpeed = Atmosphere->GetSoundSpeed();
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3 changes: 3 additions & 0 deletions src/models/FGAtmosphere.h
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Expand Up @@ -293,6 +293,9 @@ class JSBSIM_API FGAtmosphere : public FGModel {

virtual void bind(void);
void Debug(int from) override;

public:
static constexpr double StdDaySLdensity = StdDaySLpressure / (Reng0 * StdDaySLtemperature);
};

} // namespace JSBSim
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2 changes: 1 addition & 1 deletion src/models/FGAuxiliary.cpp
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Expand Up @@ -198,7 +198,7 @@ bool FGAuxiliary::Run(bool Holding)

if (abs(Mach) > 0.0) {
vcas = VcalibratedFromMach(Mach, in.Pressure);
veas = sqrt(2 * qbar / in.DensitySL);
veas = sqrt(2 * qbar / FGAtmosphere::StdDaySLdensity);
}
else
vcas = veas = 0.0;
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