hi, i want to do for a simple mesh, i specified one boundary as mas flow inlet, another as pressure outlet and remaining two as wall, and i tried to solve using vof, method by specifying mass flow rate, but i cannot able to get the result.can any body tell,is it possible to specify a mass flow rate using vof method. if we can specify mass flow rate, how can it be?

if your flow is incompressible, since density is contant, use velocity inlet BC. hope this helps. i used VOF for oil water flows to track interface and it was helpful for me. Regards