please help! HOW TO ADD GRADUALLY THE PRIMARY PHAS
 

Hi friends ,

I am using VOF model with 2 phases ,in which one phase is added gradually over a surface ,(say, like in evaporation or condensation )...

I want to model this by adding CUBIC elements of that phase (Gradually JUXTAPOSITION of those cubic elements ....) -In VOF equation there is a source term which is used to add or remove a phase ...

should I write UDF for this?? please can some body help me to solve this problem ?

thanks in advance