Free surface model application case

I’m trying to modify the FallingDroplet case to adapt it to a problem where a fluid pushes another fluid in a canal. I have some problems implementing the velocity boundary conditions for a domain. Can anybody help me with that please.
Best regards, :slightly_smiling_face:

Hi. I am working on the same test case, although I am trying to simulate a rising bubble in a liquid. I am having a problem initializing the velocity to a constant. I would like to exchange thoughts with you!