Boundary condition gas-liquid phase
 

Hi all,

I am simulating gas-liquid multiphase model of a stirred tank in FLUENT and in this case I need some specific boundary condition.

1. Top surface of tank is open to air and gas is supplied through a sparger.

2. So, how can i achieve the condition when only gas is allowed to escape from the solution domain. What will be the exact boundary condition for this ? Please help me out.


Thanks
Thiyam T Devi