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foam-extend4.1-coherent-io/applications/solvers/multiphase/cavitatingFoam/pEqn.H
2010-10-01 10:33:00 +01:00

96 lines
2.2 KiB
C

{
if (nOuterCorr == 1)
{
p =
(
rho
- (1.0 - gamma)*rhol0
- ((gamma*psiv + (1.0 - gamma)*psil) - psi)*pSat
)/psi;
}
surfaceScalarField rhof = fvc::interpolate(rho, "rhof");
volScalarField rUA = 1.0/UEqn.A();
surfaceScalarField rUAf("rUAf", rhof*fvc::interpolate(rUA));
volVectorField HbyA = rUA*UEqn.H();
phiv = (fvc::interpolate(HbyA) & mesh.Sf())
+ fvc::ddtPhiCorr(rUA, rho, U, phiv);
p.boundaryField().updateCoeffs();
surfaceScalarField phiGradp = rUAf*mesh.magSf()*fvc::snGrad(p);
phiv -= phiGradp/rhof;
# include "resetPhivPatches.H"
for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
- (rhol0 + (psil - psiv)*pSat)*fvc::ddt(gamma) - pSat*fvc::ddt(psi)
+ fvc::div(phiv, rho)
+ fvc::div(phiGradp)
- fvm::laplacian(rUAf, p)
);
if (corr == nCorr-1 && nonOrth == nNonOrthCorr)
{
pEqn.solve(mesh.solver(p.name() + "Final"));
}
else
{
pEqn.solve(mesh.solver(p.name()));
}
if (nonOrth == nNonOrthCorr)
{
phiv += (phiGradp + pEqn.flux())/rhof;
}
}
Info<< "Predicted p max-min : " << max(p).value()
<< " " << min(p).value() << endl;
rho == max
(
psi*p
+ (1.0 - gamma)*rhol0
+ ((gamma*psiv + (1.0 - gamma)*psil) - psi)*pSat,
rhoMin
);
# include "gammaPsi.H"
p =
(
rho
- (1.0 - gamma)*rhol0
- ((gamma*psiv + (1.0 - gamma)*psil) - psi)*pSat
)/psi;
p.correctBoundaryConditions();
Info<< "Phase-change corrected p max-min : " << max(p).value()
<< " " << min(p).value() << endl;
// Correct velocity
U = HbyA - rUA*fvc::grad(p);
// Remove the swirl component of velocity for "wedge" cases
if (piso.found("removeSwirl"))
{
label swirlCmpt(readLabel(piso.lookup("removeSwirl")));
Info<< "Removing swirl component-" << swirlCmpt << " of U" << endl;
U.field().replace(swirlCmpt, 0.0);
}
U.correctBoundaryConditions();
Info<< "max(U) " << max(mag(U)).value() << endl;
}