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foam-extend4.1-coherent-io/applications/solvers/heatTransfer/buoyantBoussinesqSimpleFoam/pEqn.H
2010-08-26 15:22:03 +01:00

51 lines
1.3 KiB
C

{
volScalarField rUA("rUA", 1.0/UEqn().A());
surfaceScalarField rUAf("(1|A(U))", fvc::interpolate(rUA));
U = rUA*UEqn().H();
UEqn.clear();
phi = fvc::interpolate(U) & mesh.Sf();
adjustPhi(phi, U, p);
surfaceScalarField buoyancyPhi =
rUAf*fvc::interpolate(rhok)*(g & mesh.Sf());
phi += buoyancyPhi;
for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
{
fvScalarMatrix pEqn
(
fvm::laplacian(rUAf, p) == fvc::div(phi)
);
pEqn.setReference(pRefCell, pRefValue);
// retain the residual from the first iteration
if (nonOrth == 0)
{
eqnResidual = pEqn.solve().initialResidual();
maxResidual = max(eqnResidual, maxResidual);
}
else
{
pEqn.solve();
}
if (nonOrth == nNonOrthCorr)
{
// Calculate the conservative fluxes
phi -= pEqn.flux();
// Explicitly relax pressure for momentum corrector
p.relax();
// Correct the momentum source with the pressure gradient flux
// calculated from the relaxed pressure
U += rUA*fvc::reconstruct((buoyancyPhi - pEqn.flux())/rUAf);
U.correctBoundaryConditions();
}
}
#include "continuityErrs.H"
}