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pimpleFoam family: Added PIMPLEC (PIMPLE-consistent) support

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Select using the optional

    consistent true;

setting in the PIMPLE dictionary of fvSolution.

This option is generally only beneficial for cases run in PIMPLE-mode
with a large maximum Courant number.
This commit is contained in:
Henry Weller
2015-06-27 18:56:24 +01:00
parent 8fc3d158ff
commit 60cffb2fc3
3 changed files with 59 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
applications/solvers/incompressible/pimpleFoam/SRFPimpleFoam/pEqn.H
View File

@ -2,11 +2,6 @@ volScalarField rAUrel(1.0/UrelEqn().A());
volVectorField HbyA("HbyA", Urel);
HbyA = rAUrel*UrelEqn().H();
if (pimple.nCorrPISO() <= 1)
{
UrelEqn.clear();
}
surfaceScalarField phiHbyA
(
"phiHbyA",
@ -16,13 +11,28 @@ surfaceScalarField phiHbyA
adjustPhi(phiHbyA, Urel, p);
tmp<volScalarField> rAtUrel(rAUrel);
if (pimple.consistent())
{
rAtUrel = 1.0/max(1.0/rAUrel - UrelEqn().H1(), 0.1/rAUrel);
phiHbyA +=
fvc::interpolate(rAtUrel() - rAUrel)*fvc::snGrad(p)*mesh.magSf();
HbyA -= (rAUrel - rAtUrel())*fvc::grad(p);
}
if (pimple.nCorrPISO() <= 1)
{
UrelEqn.clear();
}
// Non-orthogonal pressure corrector loop
while (pimple.correctNonOrthogonal())
{
// Pressure corrector
fvScalarMatrix pEqn
(
fvm::laplacian(rAUrel, p) == fvc::div(phiHbyA)
fvm::laplacian(rAtUrel(), p) == fvc::div(phiHbyA)
);
pEqn.setReference(pRefCell, pRefValue);
@ -40,6 +50,6 @@ while (pimple.correctNonOrthogonal())
p.relax();
// Momentum corrector
Urel = HbyA - rAUrel*fvc::grad(p);
Urel = HbyA - rAtUrel()*fvc::grad(p);
Urel.correctBoundaryConditions();
fvOptions.correct(Urel);

36
applications/solvers/incompressible/pimpleFoam/pEqn.H
View File

@ -1,23 +1,33 @@
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
volVectorField HbyA("HbyA", U);
HbyA = rAU*UEqn().H();
surfaceScalarField phiHbyA
(
"phiHbyA",
(fvc::interpolate(HbyA) & mesh.Sf())
+ fvc::interpolate(rAU)*fvc::ddtCorr(U, phi)
);
MRF.makeRelative(phiHbyA);
adjustPhi(phiHbyA, U, p);
tmp<volScalarField> rAtU(rAU);
if (pimple.consistent())
{
rAtU = 1.0/max(1.0/rAU - UEqn().H1(), 0.1/rAU);
phiHbyA +=
fvc::interpolate(rAtU() - rAU)*fvc::snGrad(p)*mesh.magSf();
HbyA -= (rAU - rAtU())*fvc::grad(p);
}
if (pimple.nCorrPISO() <= 1)
{
UEqn.clear();
}
surfaceScalarField phiHbyA
(
"phiHbyA",
(fvc::interpolate(HbyA) & mesh.Sf())
+ rAUf*fvc::ddtCorr(U, phi)
);
MRF.makeRelative(phiHbyA);
adjustPhi(phiHbyA, U, p);
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAtU()));
// Update the fixedFluxPressure BCs to ensure flux consistency
setSnGrad<fixedFluxPressureFvPatchScalarField>
@ -53,6 +63,6 @@ while (pimple.correctNonOrthogonal())
// Explicitly relax pressure for momentum corrector
p.relax();
U = HbyA - rAU*fvc::grad(p);
U = HbyA - rAtU()*fvc::grad(p);
U.correctBoundaryConditions();
fvOptions.correct(U);

28
applications/solvers/incompressible/pimpleFoam/pimpleDyMFoam/pEqn.H
View File

@ -1,18 +1,11 @@
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
volVectorField HbyA("HbyA", U);
HbyA = rAU*UEqn().H();
if (pimple.nCorrPISO() <= 1)
{
UEqn.clear();
}
surfaceScalarField phiHbyA
(
"phiHbyA",
(fvc::interpolate(HbyA) & mesh.Sf())
+ rAUf*fvc::ddtCorr(U, Uf)
+ fvc::interpolate(rAU)*fvc::ddtCorr(U, Uf)
);
MRF.makeRelative(phiHbyA);
@ -24,6 +17,23 @@ if (p.needReference())
fvc::makeAbsolute(phiHbyA, U);
}
tmp<volScalarField> rAtU(rAU);
if (pimple.consistent())
{
rAtU = 1.0/max(1.0/rAU - UEqn().H1(), 0.1/rAU);
phiHbyA +=
fvc::interpolate(rAtU() - rAU)*fvc::snGrad(p)*mesh.magSf();
HbyA -= (rAU - rAtU())*fvc::grad(p);
}
if (pimple.nCorrPISO() <= 1)
{
UEqn.clear();
}
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAtU()));
// Update the fixedFluxPressure BCs to ensure flux consistency
setSnGrad<fixedFluxPressureFvPatchScalarField>
(
@ -57,7 +67,7 @@ while (pimple.correctNonOrthogonal())
// Explicitly relax pressure for momentum corrector
p.relax();
U = HbyA - rAU*fvc::grad(p);
U = HbyA - rAtU*fvc::grad(p);
U.correctBoundaryConditions();
fvOptions.correct(U);