Re: Create new boundary condition
Thanks for your prompt reply!
Sorry I didn’t make myself clear. The top and bottom boundary has Ux predescribed (dirichlet bc) and dUy/dy=0 (neumann bc) so I guess it is actually a mxied boundary condition. By pressure boudary condition I guess the velocity gradient at all directions is 0 (exactly neumann type bc). Is there any method not to force dUx/dy=0?