9873774ee9
Improve code reuse Add multiphaseInterDyMFoam Retire MRFinterFoam -> now handled by interFoam with fvOptions Update tutorials
127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
{
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volScalarField rAU("rAU", 1.0/UEqn.A());
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surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
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volVectorField HbyA("HbyA", U);
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HbyA = rAU*UEqn.H();
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surfaceScalarField phiHbyA
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(
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"phiHbyA",
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(fvc::interpolate(HbyA) & mesh.Sf())
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+ fvc::interpolate(rho*rAU)*fvc::ddtCorr(U, phi)
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);
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surfaceScalarField phig
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(
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(
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interface.surfaceTensionForce()
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- ghf*fvc::snGrad(rho)
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)*rAUf*mesh.magSf()
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);
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phiHbyA += phig;
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// Update the fixedFluxPressure BCs to ensure flux consistency
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setSnGrad<fixedFluxPressureFvPatchScalarField>
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(
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p_rgh.boundaryField(),
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(
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phiHbyA.boundaryField()
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- (mesh.Sf().boundaryField() & U.boundaryField())
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)/(mesh.magSf().boundaryField()*rAUf.boundaryField())
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);
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tmp<fvScalarMatrix> p_rghEqnComp1;
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tmp<fvScalarMatrix> p_rghEqnComp2;
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if (pimple.transonic())
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{
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surfaceScalarField phid1("phid1", fvc::interpolate(psi1)*phi);
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surfaceScalarField phid2("phid2", fvc::interpolate(psi2)*phi);
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p_rghEqnComp1 =
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fvc::ddt(rho1) + fvc::div(phi, rho1) - fvc::Sp(fvc::div(phi), rho1)
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+ correction
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(
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psi1*fvm::ddt(p_rgh)
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+ fvm::div(phid1, p_rgh) - fvm::Sp(fvc::div(phid1), p_rgh)
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);
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deleteDemandDrivenData(p_rghEqnComp1().faceFluxCorrectionPtr());
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p_rghEqnComp1().relax();
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p_rghEqnComp2 =
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fvc::ddt(rho2) + fvc::div(phi, rho2) - fvc::Sp(fvc::div(phi), rho2)
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+ correction
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(
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psi2*fvm::ddt(p_rgh)
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+ fvm::div(phid2, p_rgh) - fvm::Sp(fvc::div(phid2), p_rgh)
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);
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deleteDemandDrivenData(p_rghEqnComp2().faceFluxCorrectionPtr());
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p_rghEqnComp2().relax();
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}
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else
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{
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p_rghEqnComp1 =
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fvc::ddt(rho1) + psi1*correction(fvm::ddt(p_rgh))
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+ fvc::div(phi, rho1) - fvc::Sp(fvc::div(phi), rho1);
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p_rghEqnComp2 =
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fvc::ddt(rho2) + psi2*correction(fvm::ddt(p_rgh))
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+ fvc::div(phi, rho2) - fvc::Sp(fvc::div(phi), rho2);
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}
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// Cache p_rgh prior to solve for density update
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volScalarField p_rgh_0(p_rgh);
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while (pimple.correctNonOrthogonal())
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{
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fvScalarMatrix p_rghEqnIncomp
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(
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fvc::div(phiHbyA)
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- fvm::laplacian(rAUf, p_rgh)
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);
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solve
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(
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(
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(max(alpha1, scalar(0))/rho1)*p_rghEqnComp1()
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+ (max(alpha2, scalar(0))/rho2)*p_rghEqnComp2()
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)
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+ p_rghEqnIncomp,
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mesh.solver(p_rgh.select(pimple.finalInnerIter()))
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);
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if (pimple.finalNonOrthogonalIter())
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{
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p = max(p_rgh + (alpha1*rho1 + alpha2*rho2)*gh, pMin);
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p_rgh = p - (alpha1*rho1 + alpha2*rho2)*gh;
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dgdt =
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(
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pos(alpha2)*(p_rghEqnComp2 & p_rgh)/rho2
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- pos(alpha1)*(p_rghEqnComp1 & p_rgh)/rho1
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);
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phi = phiHbyA + p_rghEqnIncomp.flux();
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U = HbyA
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+ rAU*fvc::reconstruct((phig + p_rghEqnIncomp.flux())/rAUf);
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U.correctBoundaryConditions();
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}
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}
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// p = max(p_rgh + (alpha1*rho1 + alpha2*rho2)*gh, pMin);
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// Update densities from change in p_rgh
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rho1 += psi1*(p_rgh - p_rgh_0);
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rho2 += psi2*(p_rgh - p_rgh_0);
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rho = alpha1*rho1 + alpha2*rho2;
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K = 0.5*magSqr(U);
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Info<< "max(U) " << max(mag(U)).value() << endl;
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Info<< "min(p_rgh) " << min(p_rgh).value() << endl;
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}
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