void Foam::MULES::explicitSolve
(
const RdeltaTType& rDeltaT,
const RhoType& rho,
volScalarField& psi,
const surfaceScalarField& phiPsi,
const SpType& Sp,
const SuType& Su
)
{
Info<< "MULES: Solving for " << psi.name() << endl;
const fvMesh& mesh = psi.mesh();
scalarField& psiIf = psi;
const scalarField& psi0 = psi.oldTime();
psiIf = 0.0;
fvc::surfaceIntegrate(psiIf, phiPsi);
if (mesh.moving())
{
psiIf =
(
mesh.Vsc0()().field()*rho.oldTime().field()
*psi0*rDeltaT/mesh.Vsc()().field()
+ Su.field()
- psiIf
)/(rho.field()*rDeltaT - Sp.field());
}
else
{
psiIf =
(
rho.oldTime().field()*psi0*rDeltaT
+ Su.field()
- psiIf
)/(rho.field()*rDeltaT - Sp.field());
}
psi.correctBoundaryConditions();
}
void Foam::MULES::implicitSolve
(
const RhoType& rho,
volScalarField& psi,
const surfaceScalarField& phi,
surfaceScalarField& phiPsi,
const SpType& Sp,
const SuType& Su,
const scalar psiMax,
const scalar psiMin
)
{
const fvMesh& mesh = psi.mesh();
const dictionary& MULEScontrols =
mesh.solutionDict().solverDict(psi.name());
label maxIter
(
readLabel(MULEScontrols.lookup("maxIter"))
);
label nLimiterIter
(
readLabel(MULEScontrols.lookup("nLimiterIter"))
);
scalar maxUnboundedness
(
readScalar(MULEScontrols.lookup("maxUnboundedness"))
);
scalar CoCoeff
(
readScalar(MULEScontrols.lookup("CoCoeff"))
);
scalarField allCoLambda(mesh.nFaces());
{
surfaceScalarField Cof =
mesh.time().deltaT()*mesh.surfaceInterpolation::deltaCoeffs()
*mag(phi)/mesh.magSf();
slicedSurfaceScalarField CoLambda
(
IOobject
(
"CoLambda",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh,
dimless,
allCoLambda,
false // Use slices for the couples
);
CoLambda == 1.0/max(CoCoeff*Cof, scalar(1));
}
scalarField allLambda(allCoLambda);
//scalarField allLambda(mesh.nFaces(), 1.0);
slicedSurfaceScalarField lambda
(
IOobject
(
"lambda",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh,
dimless,
allLambda,
false // Use slices for the couples
);
linear<scalar> CDs(mesh);
upwind<scalar> UDs(mesh, phi);
//fv::uncorrectedSnGrad<scalar> snGrads(mesh);
fvScalarMatrix psiConvectionDiffusion
(
fvm::ddt(rho, psi)
+ fv::gaussConvectionScheme<scalar>(mesh, phi, UDs).fvmDiv(phi, psi)
//- fv::gaussLaplacianScheme<scalar, scalar>(mesh, CDs, snGrads)
//.fvmLaplacian(Dpsif, psi)
- fvm::Sp(Sp, psi)
- Su
);
surfaceScalarField phiBD = psiConvectionDiffusion.flux();
surfaceScalarField& phiCorr = phiPsi;
phiCorr -= phiBD;
for (label i=0; i<maxIter; i++)
{
if (i != 0 && i < 4)
{
allLambda = allCoLambda;
}
limiter
(
allLambda,
rho,
psi,
phiBD,
phiCorr,
Sp.field(),
Su.field(),
psiMax,
psiMin,
nLimiterIter
);
solve
(
psiConvectionDiffusion + fvc::div(lambda*phiCorr),
MULEScontrols
);
scalar maxPsiM1 = gMax(psi.internalField()) - 1.0;
scalar minPsi = gMin(psi.internalField());
scalar unboundedness = max(max(maxPsiM1, 0.0), -min(minPsi, 0.0));
if (unboundedness < maxUnboundedness)
{
break;
}
else
{
Info<< "MULES: max(" << psi.name() << " - 1) = " << maxPsiM1
<< " min(" << psi.name() << ") = " << minPsi << endl;
phiBD = psiConvectionDiffusion.flux();
/*
word gammaScheme("div(phi,gamma)");
word gammarScheme("div(phirb,gamma)");
const surfaceScalarField& phir =
mesh.lookupObject<surfaceScalarField>("phir");
phiCorr =
fvc::flux
(
phi,
psi,
gammaScheme
)
+ fvc::flux
(
-fvc::flux(-phir, scalar(1) - psi, gammarScheme),
psi,
gammarScheme
)
- phiBD;
*/
}
}
phiPsi = psiConvectionDiffusion.flux() + lambda*phiCorr;
}
void Foam::MULES::explicitSolve
(
const RhoType& rho,
volScalarField& psi,
const surfaceScalarField& phi,
surfaceScalarField& phiPsi,
const SpType& Sp,
const SuType& Su,
const scalar psiMax,
const scalar psiMin
)
{
Info<< "MULES: Solving for " << psi.name() << endl;
const fvMesh& mesh = psi.mesh();
psi.correctBoundaryConditions();
surfaceScalarField phiBD(upwind<scalar>(psi.mesh(), phi).flux(psi));
surfaceScalarField& phiCorr = phiPsi;
phiCorr -= phiBD;
scalarField allLambda(mesh.nFaces(), 1.0);
slicedSurfaceScalarField lambda
(
IOobject
(
"lambda",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh,
dimless,
allLambda,
false // Use slices for the couples
);
limiter
(
allLambda,
rho,
psi,
phiBD,
phiCorr,
Sp,
Su,
psiMax,
psiMin,
3
);
phiPsi = phiBD + lambda*phiCorr;
scalarField& psiIf = psi;
const scalarField& psi0 = psi.oldTime();
const scalar deltaT = mesh.time().deltaTValue();
psiIf = 0.0;
fvc::surfaceIntegrate(psiIf, phiPsi);
if (mesh.moving())
{
psiIf =
(
mesh.Vsc0()().field()*rho.oldTime().field()
*psi0/(deltaT*mesh.Vsc()().field())
+ Su.field()
- psiIf
)/(rho.field()/deltaT - Sp.field());
}
else
{
psiIf =
(
rho.oldTime().field()*psi0/deltaT
+ Su.field()
- psiIf
)/(rho.field()/deltaT - Sp.field());
}
psi.correctBoundaryConditions();
}
void Foam::MULES::limiter
(
scalargpuField& allLambda,
const RdeltaTType& rDeltaT,
const RhoType& rho,
const volScalarField& psi,
const surfaceScalarField& phiBD,
const surfaceScalarField& phiCorr,
const SpType& Sp,
const SuType& Su,
const scalar psiMax,
const scalar psiMin,
const label nLimiterIter
)
{
const scalargpuField& psiIf = psi.getField();
const volScalarField::GeometricBoundaryField& psiBf = psi.boundaryField();
const scalargpuField& psi0 = psi.oldTime();
const fvMesh& mesh = psi.mesh();
const labelgpuList& owner = mesh.owner();
const labelgpuList& neighb = mesh.neighbour();
const labelgpuList& losort = mesh.lduAddr().losortAddr();
const labelgpuList& ownStart = mesh.lduAddr().ownerStartAddr();
const labelgpuList& losortStart = mesh.lduAddr().losortStartAddr();
tmp<volScalarField::DimensionedInternalField> tVsc = mesh.Vsc();
const scalargpuField& V = tVsc().getField();
const scalargpuField& phiBDIf = phiBD;
const surfaceScalarField::GeometricBoundaryField& phiBDBf =
phiBD.boundaryField();
const scalargpuField& phiCorrIf = phiCorr;
const surfaceScalarField::GeometricBoundaryField& phiCorrBf =
phiCorr.boundaryField();
slicedSurfaceScalarField lambda
(
IOobject
(
"lambda",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh,
dimless,
allLambda,
false // Use slices for the couples
);
scalargpuField& lambdaIf = lambda;
surfaceScalarField::GeometricBoundaryField& lambdaBf =
lambda.boundaryField();
scalargpuField psiMaxn(psiIf.size(), psiMin);
scalargpuField psiMinn(psiIf.size(), psiMax);
scalargpuField sumPhiBD(psiIf.size(), 0.0);
scalargpuField sumPhip(psiIf.size(), VSMALL);
scalargpuField mSumPhim(psiIf.size(), VSMALL);
thrust::for_each
(
thrust::make_counting_iterator(0),
thrust::make_counting_iterator(0)+psiIf.size(),
limiterMULESFunctor
(
owner.data(),
neighb.data(),
ownStart.data(),
losortStart.data(),
losort.data(),
psiIf.data(),
phiBDIf.data(),
phiCorrIf.data(),
psiMaxn.data(),
psiMinn.data(),
sumPhiBD.data(),
sumPhip.data(),
mSumPhim.data()
)
);
forAll(phiCorrBf, patchi)
{
const fvPatchScalarField& psiPf = psiBf[patchi];
const scalargpuField& phiBDPf = phiBDBf[patchi];
const scalargpuField& phiCorrPf = phiCorrBf[patchi];
const labelgpuList& pcells = mesh.lduAddr().patchSortCells(patchi);
const labelgpuList& losort = mesh.lduAddr().patchSortAddr(patchi);
const labelgpuList& losortStart = mesh.lduAddr().patchSortStartAddr(patchi);
thrust::for_each
(
thrust::make_counting_iterator(0),
thrust::make_counting_iterator(0)+pcells.size(),
patchMinMaxMULESFunctor
(
losortStart.data(),
losort.data(),
pcells.data(),
psiPf.coupled()?psiPf.patchNeighbourField()().data():psiPf.data(),
phiBDPf.data(),
phiCorrPf.data(),
psiMaxn.data(),
psiMinn.data(),
sumPhiBD.data(),
sumPhip.data(),
mSumPhim.data()
)
);
}
psiMaxn = min(psiMaxn, psiMax);
psiMinn = max(psiMinn, psiMin);
//scalar smooth = 0.5;
//psiMaxn = min((1.0 - smooth)*psiIf + smooth*psiMaxn, psiMax);
//psiMinn = max((1.0 - smooth)*psiIf + smooth*psiMinn, psiMin);
if (mesh.moving())
{
tmp<volScalarField::DimensionedInternalField> V0 = mesh.Vsc0();
psiMaxn =
V
*(
(rho.getField()*rDeltaT - Sp.getField())*psiMaxn
- Su.getField()
)
- (V0().getField()*rDeltaT)*rho.oldTime().getField()*psi0
+ sumPhiBD;
psiMinn =
V
*(
Su.getField()
- (rho.getField()*rDeltaT - Sp.getField())*psiMinn
)
+ (V0().getField()*rDeltaT)*rho.oldTime().getField()*psi0
- sumPhiBD;
}
else
{
psiMaxn =
V
*(
(rho.getField()*rDeltaT - Sp.getField())*psiMaxn
- Su.getField()
- (rho.oldTime().getField()*rDeltaT)*psi0
)
+ sumPhiBD;
psiMinn =
V
*(
Su.getField()
- (rho.getField()*rDeltaT - Sp.getField())*psiMinn
+ (rho.oldTime().getField()*rDeltaT)*psi0
)
- sumPhiBD;
}
scalargpuField sumlPhip(psiIf.size());
scalargpuField mSumlPhim(psiIf.size());
for (int j=0; j<nLimiterIter; j++)
{
sumlPhip = 0.0;
mSumlPhim = 0.0;
thrust::for_each
(
thrust::make_counting_iterator(0),
thrust::make_counting_iterator(0)+sumlPhip.size(),
sumlPhiMULESFunctor
(
owner.data(),
neighb.data(),
ownStart.data(),
losortStart.data(),
losort.data(),
lambdaIf.data(),
phiCorrIf.data(),
sumlPhip.data(),
mSumlPhim.data()
)
);
forAll(lambdaBf, patchi)
{
scalargpuField& lambdaPf = lambdaBf[patchi];
const scalargpuField& phiCorrfPf = phiCorrBf[patchi];
const labelgpuList& pcells = mesh.lduAddr().patchSortCells(patchi);
const labelgpuList& losort = mesh.lduAddr().patchSortAddr(patchi);
const labelgpuList& losortStart = mesh.lduAddr().patchSortStartAddr(patchi);
thrust::for_each
(
thrust::make_counting_iterator(0),
thrust::make_counting_iterator(0)+pcells.size(),
patchSumlPhiMULESFunctor
(
losortStart.data(),
losort.data(),
pcells.data(),
lambdaPf.data(),
phiCorrfPf.data(),
sumlPhip.data(),
mSumlPhim.data()
)
);
}
thrust::transform
(
sumlPhip.begin(),
sumlPhip.end(),
thrust::make_zip_iterator(thrust::make_tuple
(
psiMaxn.begin(),
mSumPhim.begin()
)),
sumlPhip.begin(),
sumlPhipFinalMULESFunctor<false>()
);
thrust::transform
(
mSumlPhim.begin(),
mSumlPhim.end(),
thrust::make_zip_iterator(thrust::make_tuple
(
psiMinn.begin(),
sumPhip.begin()
)),
mSumlPhim.begin(),
sumlPhipFinalMULESFunctor<true>()
);
const scalargpuField& lambdam = sumlPhip;
const scalargpuField& lambdap = mSumlPhim;
thrust::transform
(
phiCorrIf.begin(),
phiCorrIf.end(),
thrust::make_zip_iterator(thrust::make_tuple
(
lambdaIf.begin(),
thrust::make_permutation_iterator
(
lambdap.begin(),
owner.begin()
),
thrust::make_permutation_iterator
(
lambdam.begin(),
neighb.begin()
),
thrust::make_permutation_iterator
(
lambdam.begin(),
owner.begin()
),
thrust::make_permutation_iterator
(
lambdap.begin(),
neighb.begin()
)
)),
lambdaIf.begin(),
lambdaIfMULESFunctor()
);
forAll(lambdaBf, patchi)
{
fvsPatchScalarField& lambdaPf = lambdaBf[patchi];
const scalargpuField& phiCorrfPf = phiCorrBf[patchi];
const fvPatchScalarField& psiPf = psiBf[patchi];
if (isA<wedgeFvPatch>(mesh.boundary()[patchi]))
{
lambdaPf = 0;
}
else if (psiPf.coupled())
{
const labelgpuList& pFaceCells =
mesh.boundary()[patchi].faceCells();
thrust::transform
(
phiCorrfPf.begin(),
phiCorrfPf.end(),
thrust::make_zip_iterator(thrust::make_tuple
(
lambdaPf.begin(),
thrust::make_permutation_iterator
(
lambdap.begin(),
pFaceCells.begin()
),
thrust::make_permutation_iterator
(
lambdam.begin(),
pFaceCells.begin()
)
)),
lambdaPf.begin(),
coupledPatchLambdaPfMULESFunctor()
);
}
else
{
const labelgpuList& pFaceCells =
mesh.boundary()[patchi].faceCells();
const scalargpuField& phiBDPf = phiBDBf[patchi];
const scalargpuField& phiCorrPf = phiCorrBf[patchi];
thrust::transform
(
phiCorrfPf.begin(),
phiCorrfPf.end(),
thrust::make_zip_iterator(thrust::make_tuple
(
lambdaPf.begin(),
phiBDPf.begin(),
phiCorrPf.begin(),
thrust::make_permutation_iterator
(
lambdap.begin(),
pFaceCells.begin()
),
thrust::make_permutation_iterator
(
lambdam.begin(),
pFaceCells.begin()
)
)),
lambdaPf.begin(),
patchLambdaPfMULESFunctor()
);
}
}