Commit f2ce1fa9 authored by Henry Weller's avatar Henry Weller
Browse files

twoPhaseEulerFoam::twoPhaseSystem: Ensure inlet flow of BOTH phases matches the BCs

Previously the inlet flow of phase 1 (the phase solved for) is corrected
to match the inlet specification for that phase.  However, if the second
phase is also constrained at inlets the inlet flux must also be
corrected to match the inlet specification.
parent aace62a1
......@@ -248,4 +248,30 @@ bool Foam::phaseModel::read(const dictionary& phaseProperties)
}
void Foam::phaseModel::correctInflowFlux(surfaceScalarField& alphaPhi) const
{
surfaceScalarField::Boundary& alphaPhiBf = alphaPhi.boundaryFieldRef();
// Ensure that the flux at inflow BCs is preserved
forAll(alphaPhiBf, patchi)
{
fvsPatchScalarField& alphaPhip = alphaPhiBf[patchi];
if (!alphaPhip.coupled())
{
const scalarField& phip = phi().boundaryField()[patchi];
const scalarField& alphap = boundaryField()[patchi];
forAll(alphaPhip, facei)
{
if (phip[facei] < SMALL)
{
alphaPhip[facei] = alphap[facei]*phip[facei];
}
}
}
}
}
// ************************************************************************* //
......@@ -319,6 +319,9 @@ public:
return alphaRhoPhi_;
}
//- Ensure that the flux at inflow BCs is preserved
void correctInflowFlux(surfaceScalarField& alphaPhi) const;
//- Correct the phase properties
// other than the thermodynamics and turbulence
// which have special treatment
......
......@@ -444,28 +444,7 @@ void Foam::twoPhaseSystem::solve()
)
);
surfaceScalarField::Boundary& alphaPhic1Bf =
alphaPhic1.boundaryFieldRef();
// Ensure that the flux at inflow BCs is preserved
forAll(alphaPhic1Bf, patchi)
{
fvsPatchScalarField& alphaPhic1p = alphaPhic1Bf[patchi];
if (!alphaPhic1p.coupled())
{
const scalarField& phi1p = phi1.boundaryField()[patchi];
const scalarField& alpha1p = alpha1.boundaryField()[patchi];
forAll(alphaPhic1p, facei)
{
if (phi1p[facei] < 0)
{
alphaPhic1p[facei] = alpha1p[facei]*phi1p[facei];
}
}
}
}
phase1_.correctInflowFlux(alphaPhic1);
if (nAlphaSubCycles > 1)
{
......@@ -537,6 +516,7 @@ void Foam::twoPhaseSystem::solve()
phase2_.alphaPhi() = phi_ - phase1_.alphaPhi();
alpha2 = scalar(1) - alpha1;
phase2_.correctInflowFlux(phase2_.alphaPhi());
phase2_.alphaRhoPhi() =
fvc::interpolate(phase2_.rho())*phase2_.alphaPhi();
......
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