Commit 4bb7f08e authored by Henry Weller's avatar Henry Weller
Browse files

constrainPressure: Updated to use the more efficient patch-based MRF::relative function

parent 618bf48a
...@@ -43,48 +43,35 @@ void Foam::constrainPressure ...@@ -43,48 +43,35 @@ void Foam::constrainPressure
) )
{ {
const fvMesh& mesh = p.mesh(); const fvMesh& mesh = p.mesh();
volScalarField::GeometricBoundaryField& pBf = p.boundaryField(); volScalarField::GeometricBoundaryField& pBf = p.boundaryField();
bool hasFixedFluxBCs = false; const volVectorField::GeometricBoundaryField& UBf = U.boundaryField();
const surfaceScalarField::GeometricBoundaryField& phiHbyABf =
phiHbyA.boundaryField();
const typename RAUType::GeometricBoundaryField& rhorAUBf =
rhorAU.boundaryField();
const surfaceVectorField::GeometricBoundaryField& SfBf =
mesh.Sf().boundaryField();
const surfaceScalarField::GeometricBoundaryField& magSfBf =
mesh.magSf().boundaryField();
forAll(pBf, patchi) forAll(pBf, patchi)
{ {
if (isA<fixedFluxPressureFvPatchScalarField>(pBf[patchi])) if (isA<fixedFluxPressureFvPatchScalarField>(pBf[patchi]))
{ {
hasFixedFluxBCs = true; refCast<fixedFluxPressureFvPatchScalarField>
break; (
} pBf[patchi]
} ).updateCoeffs
(
if (hasFixedFluxBCs)
{
const surfaceScalarField::GeometricBoundaryField& phiHbyABf =
phiHbyA.boundaryField();
const typename RAUType::GeometricBoundaryField& rhorAUBf =
rhorAU.boundaryField();
const surfaceScalarField::GeometricBoundaryField& magSfBf =
mesh.magSf().boundaryField();
// Pre-compute tho relative flux for all patches: currently MRFZone does
// not support computing the relative flux for individual patches
FieldField<fvsPatchField, scalar> phiRelBf
(
MRF.relative(mesh.Sf().boundaryField() & U.boundaryField())
);
forAll(pBf, patchi)
{
if (isA<fixedFluxPressureFvPatchScalarField>(pBf[patchi]))
{
refCast<fixedFluxPressureFvPatchScalarField>(pBf[patchi])
.updateCoeffs
( (
( phiHbyABf[patchi]
phiHbyABf[patchi] - rho.boundaryField()[patchi]
- rho.boundaryField()[patchi]*phiRelBf[patchi] *MRF.relative(SfBf[patchi] & UBf[patchi], patchi)
) )
/(magSfBf[patchi]*rhorAUBf[patchi]) /(magSfBf[patchi]*rhorAUBf[patchi])
); );
}
} }
} }
} }
......
...@@ -68,6 +68,13 @@ public: ...@@ -68,6 +68,13 @@ public:
{ {
return U; return U;
} }
//- Return the argument unchanged
template<class Type>
inline const Type& relative(const Type& U, const label patchi) const
{
return U;
}
}; };
......
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