Free surface
 

Hi CFX users,

I have tried to model a free surface problem using the homogeneous model in CFX-5.5.1 without success.

I've checked all the boundary and initial conditions and they seem to be ok. My system is a small box that is fed by a nozzle and when it is full, the water overflows over an iclined plan near the top of this box. I'm starting the problem with an initial level of water using the step command and setting a pressure field.

The problem is that the result is very strange and I don't know if I have to change the grid to a smaller one or if I have to change the timesteps to have a consistent result.

Does anybody has any advice to proceed this simulation ?