Help with diverging simulation on an External aerodynamics case (moved from 99986)

Hi Igor,
Another problem arose with my mesh. I received the following error:" Result controls have been applied on the following topological entities: face 3427@Flow region, face 3435@Flow region, face 3439@Flow region, face 3423@Flow region, face 3542@Flow region, face 3431@Flow region, face 3538@Flow region, face 3452@Flow region, face 3443@Flow region. These faces have been defeatured because the meshing parameters are too coarse and will be ignored. However, if they are pertinent to your simulation, please refine the mesh further or review your result control setup.
Job was prepared successfully.
Run pre-processing finished.
The simulation failed likely because the mesh used for this simulation has bad quality. Either increase the fineness of the mesh in critical regions, these can be identified by the mesh quality visualization, or consider switching to lower-order numerical schemes, such as upwind."

I was wondering if I could receive some help with this as well? I have gotten this error before and haven’t figured a way around it.

Hi @gkerner002

Inspecting the mesh via the Mesh Quality viewer, I see many highly Non-Orthogonal cells:

Please take a look at this recent forum post with a very similar issue: Incompressible Fluid Flow For Car

Cheers
Igor