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Open Channel Flow in a Pipe

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Old   October 11, 2016, 01:10
Default Open Channel Flow in a Pipe
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Sebastián Barragán
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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
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Old   October 14, 2016, 11:00
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Salman Sakib
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Create velocity inlet and pressure outlet surface and boundary conditions, then activate open channel flow.
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Old   February 27, 2017, 03:12
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Masoud Ravan
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Quote:
Originally Posted by salmanayon View Post
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?
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Old   March 6, 2017, 09:25
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Maryam Alih
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Hi, I want to do the same simulation. Have you found any solution?!
thanks
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Old   March 22, 2017, 07:07
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Sebastián Barragán
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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.
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Old   March 22, 2017, 07:14
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Sebastián Barragán
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Quote:
Originally Posted by salmanayon View Post
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
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