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ENH: pressureGradientSource - cache 1/A instead of using lookup

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This commit is contained in:
andy
2012-05-15 16:11:58 +01:00
parent aab426ec9e
commit 2c6f89effe
2 changed files with 71 additions and 30 deletions
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89
src/fieldSources/basicSource/pressureGradientExplicitSource/pressureGradientExplicitSource.C
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@ -83,7 +83,8 @@ Foam::pressureGradientExplicitSource::pressureGradientExplicitSource
Ubar_(coeffs_.lookup("Ubar")),
gradPini_(coeffs_.lookup("gradPini")),
gradP_(gradPini_),
flowDir_(Ubar_/mag(Ubar_))
flowDir_(Ubar_/mag(Ubar_)),
invAPtr_(NULL)
{
coeffs_.lookup("fieldNames") >> fieldNames_;
@ -124,36 +125,9 @@ Foam::pressureGradientExplicitSource::pressureGradientExplicitSource
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::pressureGradientExplicitSource::addSup
(
fvMatrix<vector>& eqn,
const label fieldI
)
{
DimensionedField<vector, volMesh> Su
(
IOobject
(
name_ + fieldNames_[fieldI] + "Sup",
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh_,
dimensionedVector("zero", gradP_.dimensions(), vector::zero)
);
UIndirectList<vector>(Su, cells_) = flowDir_*gradP_.value();
eqn += Su;
}
void Foam::pressureGradientExplicitSource::correct(volVectorField& U)
{
const volScalarField& rAU =
mesh_.lookupObject<volScalarField>("(1|A(" + U.name() + "))");
const scalarField& rAU = invAPtr_().internalField();
// Integrate flow variables over cell set
scalar magUbarAve = 0.0;
@ -196,4 +170,61 @@ void Foam::pressureGradientExplicitSource::correct(volVectorField& U)
}
void Foam::pressureGradientExplicitSource::addSup
(
fvMatrix<vector>& eqn,
const label fieldI
)
{
DimensionedField<vector, volMesh> Su
(
IOobject
(
name_ + fieldNames_[fieldI] + "Sup",
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE
),
mesh_,
dimensionedVector("zero", gradP_.dimensions(), vector::zero)
);
UIndirectList<vector>(Su, cells_) = flowDir_*gradP_.value();
eqn += Su;
}
void Foam::pressureGradientExplicitSource::setValue
(
fvMatrix<vector>& eqn,
const label
)
{
if (invAPtr_.empty())
{
invAPtr_.reset
(
new volScalarField
(
IOobject
(
name_ + "::invA",
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE
),
1.0/eqn.A()
)
);
}
else
{
invAPtr_() = 1.0/eqn.A();
}
}
// ************************************************************************* //