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Old   March 12, 2016, 14:31
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Sana Ullah
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Hi everyone,

I have an experimental setup inside a closed chamber. The air is injected to the chamber through nozels. There are four exhaust holes for venting chamber using a fan. Velocity induced by the fan at these four exhaust holes is known. So i need to use this known velocity at these holes. what is appropriate boundary condition for pressure at these exhaust holes.
using simple fixedvalue (for velocity) and zeroGradinet (pressure) combination crashes with continuity error.

Please guide..
Thanks
Mehar
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Old   March 13, 2016, 01:11
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Sana Ullah
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Anyone...any idea? Please help!
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Old   March 14, 2016, 13:36
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Isn't it a valid question?
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Old   March 14, 2016, 19:59
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So, I am attaching my experimental setup, in case someone needs to see it.
I am using simpleFoam with SA model.
The velocity caused by Fan at exhaust points 1-4 is known.

Thank You!

Regards
Mehar
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File Type: png image001.png (89.3 KB, 10 views)
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