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Old   February 6, 2012, 16:39
Question interFoam open channel
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Hello every body,

I am pretty new in using of OpenFoam. I am trying to solve a problem with OpenFoam and I am using interFoam solver, laminar. However, I have problem in my inlet.
I think the problem should be in inlet boundary condition. I am modeling an open channel that at the top I have a small inlet which creates a water jet that comes down from air phase into the water phase.And I do not have outlet. But when I define my boundary conditions as below:
for 0/alpha1
type fixedValue;
value uniform 1;

and for 0/U
type fixedValue;
value uniform (4 0 0);
and for 0/P_rgh

type buoyantPressure;
value uniform 0;
I do not have a continuous water entry in the inlet. It looks like that at time 0 the condition is water but when the program runs it is just air in the inlet. How can I figure out this problem?
If any body knows what should I do, please let me know. Because I think this is a pretty simple problem and I am missing some small items maybe in boundary conditions that I can not see a continuous water flow in my inlet.

Thank you indeed in anticipation.

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