particle-wall interaction and free surfaces

Submitted by VAJIHEH on Fri, 02/17/2012 - 17:07

Hi Chris,

I have two questions.
first is regarding particle-wall interactions. what happens when particles get close to walls d< rp ? in my simulations particles are passing through the walls although I have defined the walls on my geometry .

and my second question is how can I define free surfaces on the simulation? any help is appreciated as this is my first time doing a three phase with free surfaces...