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foam-extend4.1-coherent-io/applications/solvers/compressible/rhoPimpleFoam/UEqn.H
2012-01-29 12:05:14 +00:00

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// Solve the Momentum equation
tmp<fvVectorMatrix> UEqn
(
fvm::ddt(rho, U)
+ fvm::div(phi, U)
+ turbulence->divDevRhoReff(U)
);
if (oCorr == nOuterCorr - 1)
{
if (mesh.solutionDict().relax("UFinal"))
{
UEqn().relax(mesh.solutionDict().relaxationFactor("UFinal"));
}
else
{
UEqn().relax(1);
}
}
else
{
UEqn().relax();
}
volScalarField rUA = 1.0/UEqn().A();
if (momentumPredictor)
{
if (oCorr == nOuterCorr-1)
{
solve(UEqn() == -fvc::grad(p), mesh.solutionDict().solver("UFinal"));
}
else
{
solve(UEqn() == -fvc::grad(p));
}
}
else
{
U = rUA*(UEqn().H() - fvc::grad(p));
U.correctBoundaryConditions();
}