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Poly-hexcore mesh and symmetry

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Old   August 23, 2023, 03:56
Default Poly-hexcore mesh and symmetry
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Nawaf
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Hi there,

I faced a problem in Ansys Fluent where I was simulating an external aerodynamics case but I found the solution and wanted to share with you guys.

Problem:
The case was half of a wing and at the root of the wing there is a symmetry boundary condition, the mesh was generated using Fluent meshing with volume mesh of poly-hexcore. The problem was that the residuals were converged and solution monitoring outputs were constant, but the pressures and velocity contours show a constant value through the whole flow domain, and this value was not logical at all.

Solution
After several trails it was found that this error was because the poly-hexcore mesh. Somehow poly-hexcore mesh seems to be not working with the symmetry boundary condition. When I changed the volume mesh to polyhedra I got a logical results and the solution was converged and everything was ok.

If anyone knows about this error or have a certain document please share it with us
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