[sebastianbn]

Hi!

I need some help setting up an open channel flow problem.
It consists in a sewer pipe, with very small slope, which should have water flowing up to the 85% of it's cross section.
I haven't been able to set this initial boundary condition so that there is water and air...
Any help would be very useful.

Thanks,

Sebastián

[salmanayon]

Create velocity inlet and pressure outlet surface and boundary conditions, then activate open channel flow.

[masoud.ravan]

Originally Posted by salmanayon

Create velocity inlet and pressure outlet surface and boundary conditions, then activate open channel flow.

Hi, I want to simulate an open channel with fixed water level at inlet and outlet but I do not know how to fix the water level, I have used OPEN CHANNEL FLOW but after simulation results showed same water level at inlet and outlet...Do you know why?

[mary.alih]

Hi, I want to do the same simulation. Have you found any solution?!
thanks

[sebastianbn]

I've used pressure inlet and pressure outlet and it seems to work...
But I have the same problem mentioned above, it appears that after the simulation both inlet and outlet, even I set different elevations for each one, they end being the same.

[sebastianbn]

Originally Posted by salmanayon

Create velocity inlet and pressure outlet surface and boundary conditions, then activate open channel flow.

Hey! Thanks for answering back.
How do you use a velocity inlet with OPEN CHANNEL FLOW? When I try to use it like that it says that a velocity inlet can't be used with the OPEN CHANNEL FLOW...

My case is a 3D pipe