Vorticity-Stream Inflow, Outflow BC.
 

Hello, I have done my Vorticity-Stream 2D solver, and I would like to test it in something like "aerodynamic" tunnel, but I don't have idea how to specify BC for inflow-outflow walls. I know how to apply velocity paraller to the wall, but how to vanish it and apply velocity tangent to the wall? Best Regards, Maciej Matyka, maq@panoramix.ift.uni.wroc.pl