Reply To: Boundary conditions for waterAirflatInterface2d
Hi Callum,
the idea of the free surface models is that you are only solving the momentum equations for one phase, i.e. the liquid. If you want to do a crossflow of water and air you need to solve momentum equations for both phases. So a phase field model would be more appropriate for you. There is a so-called “free energy” model in OLB but it only has equal densities for the two phases yet. In the next release, there will be high density ratio phase field models that can be used for your problem.
Best
Tim