[kraf]

Hello! I'm trying to simulate flow in a channel with a pier using pisoFoam. In my simulations the channel has a flat bed but now I want to change the bed slope of the channel to different degrees (steeper). How can I include the effect of the slope in the simulations? In my understanding the flow is caused by a pressure gradient so I would lil to know if the effect of the slope is also considered, or how to consider it.
Thank you for your help in advance.

[David*]

I think that you have to include the pressure gradient in the boundary conditions for inlet + outlet. If you want to go further (include gravity), there are some posts on the forum, e.g.
single phase, incompressible, flow with gravity


You could also use interFoam with only one phase.