[Panda School]

Hello everyone,

I am trying to a 2D simulation as the image described, gravity was considered, obviously the pressure outlet boundary did not work well for this problem.

Is there any way to define a Neumann boundary condition at the outlet, like ∂p/∂x=0, ∂v/∂x=0, or other way to simulate this correctly.

[ping]

the easy way to do it well is to use the vof flat wave method in star and then use the special pressure outlet hydrodynamic pressure field that is created