slfmenergyfoam-4.x/pEqn.H
2018-09-30 21:18:38 +09:00

56 lines
1.4 KiB
C

{
// Thermodynamic density needs to be updated by psi*d(p) after the
// pressure solution - done in 2 parts. Part 1:
thermo.rho() -= psi*p;
volScalarField rAU(1.0/UEqn.A());
surfaceScalarField rhorAUf("rhorAUf", fvc::interpolate(rho*rAU));
volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p));
tUEqn.clear();
surfaceScalarField phiHbyA
(
"phiHbyA",
fvc::interpolate(rho)*fvc::flux(HbyA)
);
MRF.makeRelative(fvc::interpolate(rho), phiHbyA);
// Update the pressure BCs to ensure flux consistency
constrainPressure(p, rho, U, phiHbyA, rhorAUf, MRF);
while (simple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvc::div(phiHbyA)
- fvm::laplacian(rhorAUf, p)
==
fvOptions(psi, p, rho.name())
);
pEqn.solve();
if (simple.finalNonOrthogonalIter())
{
phi = phiHbyA + pEqn.flux();
}
}
p.relax();
// Second part of thermodynamic density update
thermo.rho() += psi*p;
#include "compressibleContinuityErrs.H"
U = HbyA - rAU*fvc::grad(p);
U.correctBoundaryConditions();
fvOptions.correct(U);
rho = thermo.rho();
rho = max(rho, rhoMin);
rho = min(rho, rhoMax);
rho.relax();
Info<< "p min/max = " << min(p).value() << ", " << max(p).value() << endl;
}