Hi! I'm modeling a close basin with a constant wind stress at the water surface using VOF model. I have difficulties in defining the boundary conditions. The problem is like following: close basin 2km long and 10m deep. constant wind stress of 1.5N/m^2 at the surface I created a domain of 2000*20m with 10m air on top of the water surface. the inlet boundary above water is defined as velocity inlet and pressure outlet at downstream. however i dont know how to define the boundary condition around the water. i tried to defined them as walls, the model does not work at all. Anyone have any idea of setting up the model? thanks in advance

A) define 2 different zone in gambit B) In fluent, use water and air (or whatever u want) C)After initial conditions, patch them. D) Solve it !!

DC