Velocity Gradiant Boundary Condition
 

Hi Dears!

I want to impose Velocity Gradiant Boundary Condition. The velocity gradiant of my case in some boundaries is equal to zero (like out flow boundary condition & my case is a 2d bouyant driven flow with variable density(boussinesq equation), I wrote some UDFs in form of DEFINE_PROFILE for boundary condition & ADJUSENT & EXECUTE AT END for my domain but unfortunately i didn't get proper solution.

Could any one help me?
Thanks