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[snappyHexMesh] Unphysical solution in simpleFoam due to meshing with SHM (I guess)

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Old   September 21, 2020, 11:01
Default Unphysical solution in simpleFoam due to meshing with SHM (I guess)
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Hey all,
I try to simulate a radial impeller case with a cylindricalInletVelocity-boundary applied on a cylinder.
In image 0 attached you can see the configuration of the stl-files.

0.jpg

The simulation runs well with simpleFoam and also finishes with good residuals.

During post-processing I recognised some singularities on the inlet which -as I mentioned above- is defined by cylindricalInletVelocity-boundary condition.

1.jpg

With visiable mesh it seems like the pressure-"stripes" are caused by the mesh.

2.jpg

I am usually working with openfoam 7 by openfoam.org. I also tried version 8 and v2006 by openfoam.com to rule out a version problem.

Does somebody has an idea where this singularites come from?

Thank you very much and kind regards!
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