Patch in multiphase vof method
 

Hello all

I am trying to simulate Rayleigh Benard convection in three component system whose schematic I have attached. Here wax is my primary phase and water & air are secondary phases. I have marked three regions corresponding to wax, water and air but how should I patch volume fractions of these regions. When I go to the Patch window, there are three options, mixture, phase_water and phase_air. Now, I don't know what to do after this, any help please.