Ata Adam

> To me it looks like the strange behaviour develops from the area in your mesh where the mesh density along the interface is visibily different (north and south of...

I have tried two additional simulations with the same cylinder mesh: **1. Stationary cylinder** The settings are almost identical, except: su2Config.cfg: ``` ... TIME_STEP = 0.00593412 ... ``` zone_rot.cfg: ```...

> There are 2 cases in the testcases repository, both are using the Euler solver. Maybe also check if your case is running correctly with the settings from those testcases....