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August 6, 2022, 04:44 |
Numerical Schemes in Order of Accuracy
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#1 |
New Member
gabriel rodrigues
Join Date: Jan 2022
Posts: 10
Rep Power: 4 |
Hello !
I'm looking for some information concerning the FvSchemes, where we define the numerical schemes used in the simulation. In my case i'm running the simpleFoam for a mesh of 145.859 tetrahedrical elements and the quality is acceptable. It would be very helpful for me some tips or even a guide around it's numerical schemes. To simplify, i'd would like to know, ordering from the lesser to the most accurate numerical scheme used in simpleFoam and thus improve my results. Thank you! I'm currently using these on mine: Code:
FoamFile { format ascii; class dictionary; location "system"; object fvSchemes; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // ddtSchemes { default steadyState; } gradSchemes { default Gauss linear; } divSchemes { default none; div(phi,U) bounded Gauss upwind; div(phi,k) bounded Gauss upwind; div(phi,epsilon) bounded Gauss upwind; div((nuEff*dev2(T(grad(U))))) Gauss linear; div(phi,age) bounded Gauss upwind; } laplacianSchemes { default Gauss linear corrected; } interpolationSchemes { default linear; } snGradSchemes { default corrected; } wallDist { method meshWave; } |
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August 6, 2022, 06:26 |
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#2 |
Senior Member
Join Date: Oct 2017
Posts: 131
Rep Power: 9 |
Take a look at the first part of module 6: https://figshare.com/articles/media/...ining/16783657
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Tags |
fvschemes, numerical method, numerical scheme, openfoam 10 |
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