vof sliding disk help please
 

Hi all,

I'm trying to simulate the behaviour of an interface water-air on a rotating disk where the water flow is fed at the center of the disk and the outlet is on the disk boundary. I need to know the heigth and the shape of the water film on the disk. The problem is that the water film is not continous but the water appears on the disk as spots.
I can't understand where is the problem, maybe is a problem of solution methods. I used for pressure velocity coupling SIMPLE.

Someone has any advices?

Thank you in advance.