two phase flow through a micro channel

hi

i have a discussion about the two phase flow in a micro channel with constant heat flux at one side of wall
my aim is to find out the transition point..ie the point where the liquid change its phase to vapour in the domain...also i need to trace the path of bubbles that generated (also the void fraction in the domain).

can this problem be solved in comsol?
if it is which is the module?

if any one who have knowledge about this simulation or any related one..pls pls help me in completing this task,,,///

thank u
ajith