60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
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p.boundaryField().updateCoeffs();
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// Prepare clean 1/Ap without contribution from under-relaxation
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// HJ, 26/Oct/2015
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volScalarField rUA
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(
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"(1|A(U))",
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1/HUEqn().A()
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);
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// Store velocity under-relaxation point before using U for
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// the flux precursor
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U.storePrevIter();
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U = rUA*HUEqn().H();
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HUEqn.clear();
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phi = fvc::interpolate(U) & mesh.Sf();
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// Global flux balance
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adjustPhi(phi, U, p);
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// Non-orthogonal pressure corrector loop
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for (int nonOrth = 0; nonOrth <= nNonOrthCorr; nonOrth++)
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{
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fvScalarMatrix pEqn
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(
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fvm::laplacian(rUA, p) == fvc::div(phi)
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);
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pEqn.setReference(pRefCell, pRefValue);
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// Retain the residual from the first iteration
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if (nonOrth == 0)
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{
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eqnResidual = pEqn.solve().initialResidual();
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maxResidual = max(eqnResidual, maxResidual);
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}
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else
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{
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pEqn.solve();
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}
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if (nonOrth == nNonOrthCorr)
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{
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phi -= pEqn.flux();
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}
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}
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# include "continuityErrs.H"
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// Explicitly relax pressure for momentum corrector
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p.relax();
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// Momentum corrector
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// Note: since under-relaxation does not change aU, H/a in U can be
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// re-used. HJ, 22/Jan/2016
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U = UUrf*(U - rUA*fvc::grad(p)) + (1 - UUrf)*U.prevIter();
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U.correctBoundaryConditions();
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