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foam-extend4.1-coherent-io/applications/solvers/engine/sonicTurbDyMEngineFoam/pEqn.H

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{
2010-09-22 18:13:13 +00:00
rho = thermo.rho();
rUA = 1.0/UEqn.A();
U = rUA*UEqn.H();
if (pimple.transonic())
{
surfaceScalarField phid =
fvc::interpolate(thermo.psi())*
((fvc::interpolate(U) & mesh.Sf()) - fvc::meshPhi(rho, U));
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvm::div(phid, p, "div(phid,p)")
- fvm::laplacian(rho*rUA, p)
);
pEqn.solve();
if (pimple.finalNonOrthogonalIter())
{
phi == pEqn.flux();
}
}
}
else
{
phi = fvc::interpolate(rho)*
((fvc::interpolate(U) & mesh.Sf()) - fvc::meshPhi(rho, U));
while (pimple.correctNonOrthogonal())
{
fvScalarMatrix pEqn
(
fvm::ddt(psi, p)
+ fvc::div(phi)
- fvm::laplacian(rho*rUA, p)
);
pEqn.solve();
if (pimple.finalNonOrthogonalIter())
{
phi += pEqn.flux();
}
}
}
// Explicitly relax pressure except for last corrector
if (!pimple.finalIter())
{
p.relax();
}
# include "rhoEqn.H"
# include "compressibleContinuityErrs.H"
U -= rUA*fvc::grad(p);
U.correctBoundaryConditions();
DpDt = fvc::DDt(surfaceScalarField("phiU", phi/fvc::interpolate(rho)), p);
dpdt = fvc::ddt(p);
}