[AleXX87]

Dear CFD users,


I am trying to simulate the turbulent 3D flow over a thin periodic wing element, with a 3d damage on the leading edge.

The mesh is unstructured and automatically generated by ansys meshing (for me this is a mandatory aspect). This makes the grid to have 1 cell thickness in the far field.

I have to impose a periodic BC spanwise, but this seems to have a very bad effect on the convergence for the mesh zone with one layer elements spanwise (far field). Sometimes I cannot even initialize the run.


Does anyone knows if there is any issue or particular setting that can help to solve this problem?


(I wish to not come back to the mesh and try to make two layers at least everywhere)


Thanks