Ansys Learning Forum Forums Installation and Licensing Ansys Products Aerofoil and Cylinder with Rotating Wall Boundary Condition Reply To: Aerofoil and Cylinder with Rotating Wall Boundary Condition

Rob
Forum Moderator

It should be OK to just set the cylinder wall motion, but check for odd effects at the ends. 

Re the mesh, have a look at the various NACA examples. You need to avoid jumps in cell size but also if you're expecting flow separation to avoid high aspect ratio cells. So, inflation + flow separation isn't good.Â