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