Reply To: How to simulate 3D analysis of water flow(open-channel flow) for an undershot turbine.

[Vinod Kumar]

Dear Raef Koebessi, I've only one question regard boundary condition.

In you tutorial, you're defining mesh interface(b/w domain & inner domin) to interior, while you didn't even named it as interior or anything else. 

In my case this interface are being read as a wall (I am using "read multiple mesh file" technique).