fvSchemes
Hi foamers!!
I would change the ddtSchemes to be timedependent and not steadyState, because I want the program to continue calculating until I choose. Anyone knows what I have to write in ddtSchemes?? thanks!! FoamFile { version 2.0; format ascii; class dictionary; location "system"; object fvSchemes; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // ddtSchemes { default steadyState; } gradSchemes { default Gauss linear; } divSchemes { default none; div(phi,U) Gauss upwind; div(phi,T) Gauss upwind; div(phi,k) Gauss upwind; div(phi,epsilon) Gauss upwind; div((nuEff*dev(T(grad(U))))) Gauss linear; } laplacianSchemes { default none; laplacian(nuEff,U) Gauss linear corrected; laplacian((1|A(U)),p_rgh) Gauss linear corrected; laplacian(kappaEff,T) Gauss linear corrected; laplacian(DkEff,k) Gauss linear corrected; laplacian(DepsilonEff,epsilon) Gauss linear corrected; laplacian(DREff,R) Gauss linear corrected; } interpolationSchemes { default linear; } snGradSchemes { default corrected; } fluxRequired { default no; p_rgh ; } // ************************************************** *********************** // |
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Which solver are you using, and what do you mean by 'stop' (i.e. crashes, or exits without errors)?
See also http://www.cfd-online.com/Forums/ope...-get-help.html. |
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I use the buoyantboussinesqsimplefoam, and I change the geometry and the parameters of transportproperties because I have a laminar flux. I study the difusivity in a cylinder. The program stops because it's converged (SIMPLE solution converged in 139.5 iterations) but I want to continue calculating until 1000 iterations for example. If it's converged, can't I continue calculating?? |
The solver you are using is inherently steady state, so there is no point continuing the simulation after it has converged - even if you would run it for 1000 more iterations, the solution will not change any more. Use buoyantBoussinesqPimpleFoam for a transient simulation.
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ok thanks! I'm going to use this other solver |
If you want longer iteration for convergence you can simply increase the convergence criteria in fvSolution
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