[mechovator]

Hello all. Images of the toy problem I am solving is attached. It is a steady state channel flow. I have two outlets. Channel outlet and pipe outlet and a free surface as well. I just have to place a correct boundary condition on free surface and do not need its details of the free surface, neither need to locate it...So free surface tutorial is not of help to me. As far as channel outlet and pipe outlet is concerned. Do I have to apply static pressure on both boundaries?? I have some labeled images of the problem but I don't know how to attach them with the post.
Any help in this regard will be highly appreciated.
With best regards