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foam-extend4.1-coherent-io/applications/solvers/multiphase/compressibleInterFoam/pEqn.H

70 lines
1.5 KiB
C

{
volScalarField rUA = 1.0/UEqn.A();
surfaceScalarField rUAf = fvc::interpolate(rUA);
tmp<fvScalarMatrix> pEqnComp;
if (pimple.transonic())
{
pEqnComp =
(fvm::ddt(p) + fvm::div(phi, p) - fvm::Sp(fvc::div(phi), p));
}
else
{
pEqnComp =
(fvm::ddt(p) + fvc::div(phi, p) - fvc::Sp(fvc::div(phi), p));
}
U = rUA*UEqn.H();
surfaceScalarField phiU
(
"phiU",
(fvc::interpolate(U) & mesh.Sf()) + fvc::ddtPhiCorr(rUA, rho, U, phi)
);
phi = phiU +
(
fvc::interpolate(interface.sigmaK())*fvc::snGrad(alpha1)*mesh.magSf()
+ fvc::interpolate(rho)*(g & mesh.Sf())
)*rUAf;
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqnIncomp
(
fvc::div(phi)
- fvm::laplacian(rUAf, p)
);
solve
(
(
max(alpha1, scalar(0))*(psi1/rho1)
+ max(alpha2, scalar(0))*(psi2/rho2)
)
*pEqnComp()
+ pEqnIncomp
);
if (pimple.finalNonOrthogonalIter())
{
dgdt =
(pos(alpha2)*(psi2/rho2) - pos(alpha1)*(psi1/rho1))
*(pEqnComp & p);
phi += pEqnIncomp.flux();
}
}
U += rUA*fvc::reconstruct((phi - phiU)/rUAf);
U.correctBoundaryConditions();
p.max(pMin);
rho1 = rho10 + psi1*p;
rho2 = rho20 + psi2*p;
Info<< "max(U) " << max(mag(U)).value() << endl;
Info<< "min(p) " << min(p).value() << endl;
}