as a part of a collage project I'm trying to run a flow simulation for a hydrotechnical structure. The model consist of pipe structure, at the exit of which there is a outer structure (stilling). The point is to examine the water behaviour after the outlet of the pipe. At this point I've modeled the geometry but I'm struggling with the flow analysis. Is there a way to combine internal and external conditions in one analysis, as the main goal is to examine the characteristics of the flow in this kind of situation.
Any help will be greatly appreciated,