Thanks @gupta126579, now let’s turn to a couple of other alternatives:
- Add a Volume custom sizing refinement near the airfoil
- Increase the boundary layer’s refinements on the airfoil’s surface using an Inflate Boundary Layer refinement. This will lower the y+ values of the boundary layers’ cells and will help with the near-wall behavior.
This y+ calculator should be very useful. For an article on what y+ is, check here.
Let us know if any of these work.
Cheers