UDF for initializing VOF

Ray

Dear friends

I'm simulating free-surface flow using Fluent v.5

(1) It is difficult to give the initial volume of fluid (VOF) using PATCH command since the shape of free surface is complex

(2) For using the user defined function. What's the command to give the initial values of VOF? Is it C_F(c,t)?

(3) For using a Profile file (with x,y,z,VOF in turn), we do not know how the x,z,z,vof are put into the profile file.

Could anyone help me? Your help will be greatly appreciated.

Ray