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kOmega SST diverges with fine mesh

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Old   August 10, 2015, 08:54
Default kOmega SST diverges with fine mesh
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Hello everybody,

I'm new to OF and I've been training on the forward facing step to understand a bit better OF.
I've managed to obtain a converged case using rhoSimpleFoam (I'm imposing a velocity corresponding to M=0,5 thus the compressible solver) which displays nice results except around the step's corner.
So I tried refining my mesh, and since then my computation blows up.
I'm a bit puzzled, because the y+ is fine, and between both cases the only thing I changed was the mesh.

Any ideas of what I should do, or what might be wrong?
Thanks in advance.

Attached are screenshots of the "coarse mesh",and the "refined mesh" as well as the velocity field.
Attached Images
File Type: jpg coarseMesh.jpg (61.3 KB, 31 views)
File Type: jpg fineMesh.jpg (60.3 KB, 26 views)
File Type: jpg velocityField.jpg (39.5 KB, 28 views)
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Old   December 13, 2017, 20:37
Vinícius da Costa Ávila
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Hi, I am facing the same problem. Have you managed to solve it?

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compressible, komegasst, mesh refinement study, openfoam, rhosimplefoam

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