I'm trying to simulate an horizontal rotating disk on which will flow water, I have made the fluid domain and the mesh.
For the solution I'm using VOF model without change and the k-epsilon RNG with swirl flow added. I have made the mesh that have
minimum orthogonal quality equal to 0.7 but i'm having problem because I have the message "reversed flow in ### faces on pressure
outlet". For some iteration it converge at 1e-3 and than it stop converging as the number of faces on which the flow is reversed as grown
up. I'm using time step between 1e-3 and 1e-6 with Curant number equal to 1.5.
1) How can I solve the reversed flow problem?
2)How can I improve the mesh for the cylindrical geometry?
3)Are the models rigth for what I want to simulate?