help~~~sloshing problem using VOF

shen

Hi ,everyone.

I'm doing simulation of sloshing effect of closed cylinder tank filled 80 percent with water and remaining air, and the pressure of the air is 0.3MPa. I set the boundary condition is wall. The tank is supposed to roll to-and-fro. I'm using VOF scheme. Which viscous model to choose? I chose k-e. and how can I impose the exciting amplitude and the oscillation which excite the roll motion?

I'm green hand in fluent, so if you have some examples of sloshing problem using VOF, especially the boundary conditions and the relevanr input details, would you please give me some? , Thank you in advance!