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October 24, 2016, 19:50 |
Smagorinsky channel flow pressure residual
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#1 |
New Member
Zuoxian Hou
Join Date: Oct 2016
Posts: 1
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Hi everyone!
I am a newbie in OF and meet some problems now. I'm using Smagorinsky model to run a simulation of channel flow which Re_tau=550. It seems that my pressure residual diverged,is that right? I followed the toturial of Re_tau=395 and just change the Reynolds number. I think its my fvsolution have some problems. solvers { p { solver GAMG; smoother DICGaussSeidel; agglomerator faceAreaPair; nCellsInCoarsestLevel 100; preconditioner DIC; mergeLevels 1; tolerance 1e-08; relTol 0; } pFinal { solver GAMG; smoother DICGaussSeidel; agglomerator faceAreaPair; nCellsInCoarsestLevel 100; preconditioner DIC; mergeLevels 1; tolerance 1e-08; relTol 0.; } U { solver PBiCG; preconditioner DILU; tolerance 1e-08; relTol 0; } } PISO { nCorrectors 2; nNonOrthogonalCorrectors 0; pRefCell 1001; pRefValue 0; } Can anyone give me some advice?I have been trapped here for over a week and don't have any idea. Thank you very much! 1.jpg |
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