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elasticSolidFoam - crash with non-orthogonal correction |
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March 9, 2015, 09:47 |
elasticSolidFoam - crash with non-orthogonal correction
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Senior Member
Aram Amouzandeh
Join Date: Mar 2009
Location: Vienna, Vienna, Austria
Posts: 190
Rep Power: 17 |
Dear all,
I am simulating a kind of beam fixed on top and loaded on the bottom in longitudinal direction of the beam. The used solver is elasticSolidFoam (foam-extend 3.1) but the same behaviour is observed with elasticIncrSolidFoam. When the non-orthogonal correction is switched off, such as Code:
laplacianSchemes { default none; laplacian(DU,U) Gauss linear uncorrected; } snGradSchemes { snGrad(U) uncorrected; } The mesh was generated with snappy (checkMesh log see attachment). The average non-orthogonality seems to be OK and its correction should not introduce too much instability (at least for my experience with CFD) so I currently do not know where the real problem lies. I also tried to play with the settings in the system/fvSolution dictionary such as with the methods for the explicit term divSigmaExp, or switching on/off the aitkenRelaxation. No improvements! I greatly appreciate your comments! Cheers, Aram |
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