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foam-extend4.1-coherent-io/applications/solvers/compressible/rhoPorousSimpleFoam/pEqn.H

74 lines
1.4 KiB
C

if (pressureImplicitPorosity)
{
U = trTU()&UEqn().H();
}
else
{
U = trAU()*UEqn().H();
}
UEqn.clear();
phi = fvc::interpolate(rho*U) & mesh.Sf();
bool closedVolume = adjustPhi(phi, U, p);
for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
{
tmp<fvScalarMatrix> tpEqn;
if (pressureImplicitPorosity)
{
tpEqn = (fvm::laplacian(rho*trTU(), p) == fvc::div(phi));
}
else
{
tpEqn = (fvm::laplacian(rho*trAU(), p) == fvc::div(phi));
}
tpEqn().setReference(pRefCell, pRefValue);
// retain the residual from the first iteration
if (nonOrth == 0)
{
eqnResidual = tpEqn().solve().initialResidual();
maxResidual = max(eqnResidual, maxResidual);
}
else
{
tpEqn().solve();
}
if (nonOrth == nNonOrthCorr)
{
phi -= tpEqn().flux();
}
}
#include "incompressible/continuityErrs.H"
// Explicitly relax pressure for momentum corrector
p.relax();
if (pressureImplicitPorosity)
{
U -= trTU()&fvc::grad(p);
}
else
{
U -= trAU()*fvc::grad(p);
}
U.correctBoundaryConditions();
bound(p, pMin);
// For closed-volume cases adjust the pressure and density levels
// to obey overall mass continuity
if (closedVolume)
{
p += (initialMass - fvc::domainIntegrate(thermo->psi()*p))
/fvc::domainIntegrate(thermo->psi());
}
rho = thermo->rho();
rho.relax();
Info<< "rho max/min : " << max(rho).value() << " " << min(rho).value() << endl;