Coupling of free surface flow and dispersed multi-phase flows
 

Help me please. Thank you.
I am trying for levee simulation to find scouring at back of the levee.

For this I use two models. I have created free surface flow (Volume of Fluid) model for the part upstream of flood wall. And Eulerian multiphase flows model for scouring part at the back of levee.

I want to couple it to get overall simulation.
What could be the possible ways for this?