Multiphase flow problem setup

Hello,

 

I am trying to set up a simulation of free surface flow around a ship hull using the multiphase option.

The inlet to the field should have a boundary condition of either inflow or far type, and the incoming fluid should be of both phases (water and air), depending on the volume of fluid fraction, however there is no such option, and when I set the incoming fluid to none, I get an error from Acuprep when setting the inlet boundary condition.

 

How can I set the inlet boundary condition correctly?

 

Thank you!