f7e4d0a110
nLimiterIter: Number of iterations during limiter construction
3 (default) is sufficient for 3D simulations with a Courant number 0.5 or so
For larger Courant numbers larger values may be needed but this is
only relevant for IMULES and CMULES
smoothLimiter: Coefficient to smooth the limiter to avoid "diamond"
staggering patters seen in regions of low particle phase-fraction in
fluidised-bed simulations.
The default is 0 as it is not needed for all simulations.
A value of 0.1 is appropriate for fluidised-bed simulations.
The useful range is 0 -> 0.5.
Values larger than 0.5 may cause excessive smearing of the solution.
99 lines
2.3 KiB
C++
99 lines
2.3 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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location "system";
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object fvSolution;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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solvers
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{
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"alpha.*"
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{
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nAlphaSubCycles 3;
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}
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p_rgh
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{
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solver GAMG;
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tolerance 1e-7;
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relTol 0.05;
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smoother GaussSeidel;
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nPreSweeps 0;
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nPostSweeps 2;
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nFinestSweeps 2;
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cacheAgglomeration on;
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nCellsInCoarsestLevel 10;
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agglomerator faceAreaPair;
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mergeLevels 1;
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}
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p_rghFinal
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{
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solver PCG;
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preconditioner
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{
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preconditioner GAMG;
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tolerance 1e-7;
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relTol 0;
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nVcycles 2;
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smoother GaussSeidel;
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nPreSweeps 0;
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nPostSweeps 2;
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nFinestSweeps 2;
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cacheAgglomeration on;
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nCellsInCoarsestLevel 10;
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agglomerator faceAreaPair;
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mergeLevels 1;
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}
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tolerance 1e-7;
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relTol 0;
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maxIter 20;
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}
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pcorr
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{
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$p_rghFinal;
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tolerance 1e-5;
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relTol 0;
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}
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U
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{
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solver smoothSolver;
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smoother GaussSeidel;
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tolerance 1e-8;
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relTol 0.1;
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nSweeps 1;
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}
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UFinal
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{
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$U;
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tolerance 1e-7;
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relTol 0;
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}
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}
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PIMPLE
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{
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nCorrectors 3;
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nNonOrthogonalCorrectors 0;
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}
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relaxationFactors
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{
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"U.*" 1;
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}
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// ************************************************************************* //
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