67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
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{
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# include "readStressedFoamControls.H"
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int iCorr = 0;
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lduMatrix::solverPerformance solverPerf;
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scalar initialResidual = 0;
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lduMatrix::debug = 0;
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# include "backwardCoeffs.H"
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do
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{
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DU.storePrevIter();
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fvVectorMatrix DUEqn
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(
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Cn*rho*fvm::ddt(DU)
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- Co*rho*DV.oldTime()
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+ Coo*rho*DV.oldTime().oldTime()
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==
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fvm::laplacian(2*mu + lambda, DU, "laplacian(DDU,DU)")
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- fvc::laplacian(mu + lambda, DU, "laplacian(DDU,DU)")
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+ fvc::div
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(
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mu*gradDU.T()
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+ lambda*(I*tr(gradDU))
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+ mu*(gradDU&gradDU.T())
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+ 0.5*lambda*(I*tr(gradDU & gradDU.T()))
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+ (sigma & DF.T())
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+ (DSigma & DF.T()),
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"div(sigma)"
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)
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);
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solverPerf = DUEqn.solve();
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DU.relax();
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if(iCorr == 0)
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{
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initialResidual = solverPerf.initialResidual();
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}
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gradDU = fvc::grad(DU);
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DF = gradDU.T();
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# include "calculateDSigma.H"
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}
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while
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(
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solverPerf.initialResidual() > convergenceTolerance
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&& ++iCorr < nCorr
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);
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Info << "Solving for " << DU.name()
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<< ", Initial residual = " << initialResidual
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<< ", Final residual = " << solverPerf.initialResidual()
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<< ", No outer iterations " << iCorr << endl;
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DV = fvc::ddt(DU);
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lduMatrix::debug = 1;
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}
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