2d turblent flow passing a back step
 

Hi there. I was wondering the best way to mesh the 2d wind tunnel to get an accurate simulation of the adverse pressure gradient, re circulation region and reattachment region. I have currently tried using face split to get a high mesh quality in this area but it has led to a series of adverse pressure gradients. Any help would be appreciated

A uniform cartesian grid is always the answer to all your problems.

Thank you for you help