Coupling flows

Hi everyone,

I’m new to palabos, just doing the tutorial at the moment. I wounder if you can give me the right catchwords and methods for my huge task, which is: simulating water flow through a porous media with gas intrusing perpendicular to the flow direction. The porous media is a titan mat with a porosity of 0.8 . Any ideas how i could start ?

Best wishes
Lukas