[jackback]

I've a problem with CFX open surface set up. my problem is to see the erosion of the river wall that cause by water flow.
can you explain to me the set up for cfx for this problem?
I try with particle transport solid/fluid. but, in fluid model and fluid pair, there's no free surface option. I think the result will be no free surface.
what set should i do ? what is the right fluid model for this case ?
thank you.
Your answer, will be helpful for me.