2 phase problem(water + steam)

pavan reddy

hi this is pavan i ma doing a problem in which i have a container kind of thing which is heated to a certain temperature into which water is dosed i got only one inlet and about 25-30 outlet holes and all the outlets are in the same family for inlet i have given velocity inlet and for outlet pressure outvents as boundary conditions above operation takes place at atm pressure only i have a very less mass rate of water the problem is i am not able to get convergence for continuity eqn only can someone suggest whether those boundary conditions will work and suggest any other best way of simulating the above model thanks for your time