Re: Glitches around cylinder boundary layer
bounce back have to work in your simulation. If bounce back doesn’t work, your material number configuration is maybe not correct. There is no physical reason for this kind of stripes. The reason for the uptstream vortices could be a reflection of the pressure waves from the cylinder at the inlet. You can try to increase the space between your inlet and your cylinder and to change the boundary condition to velocity bounce back at the inlet.