[murx]

Hi,
I am studying lift and drag of a rotating sphere in a shear flow. That's why I am interested in the pressure profile on the sphere. The profile that I get from my simulations looks pretty awkward to me.

I use ICEM to build a blockstructured mesh and convert it to an unstructured mesh to import it into CFX. In the pressure profile you can clearly observe a step in pressure at the edges of the blocks.

I tried several things, like mesh refinement, double precision run, different advection scheme to fix this problem but nothing worked. However, if I set the rotational velocity of the sphere to zero, I get a smooth pressure profile. So, the mesh itself cannot be the problem.

Does anybody have a clue whats going on there?

Any help is highly appreciated!