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How to simulate a fan inside a domain

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Old   June 21, 2013, 09:16
Default How to simulate a fan inside a domain
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Astio Lamar
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Hello every body.

I have two pipe within my geometry. The airflow was supplied over the inlet 1 and extracted out by outlet 1.
There is a fan in the inner pipe which suck the flow in the inner pipe from outlet 2 and extracted to the main pipe from outlet 2. the flow can pass also from the gap between the shell of inner/outer pipes. How can I specify the boundary condition of inlet/outlet 2? Note that we have no any flow properties at the inlet/outlet 2 except velocity.
I think it is possible to do it with fan-zone, but I cannot find any example for it.
I am appropriate if someone can give me a hand in the case.

Thanks.

Last edited by asal; June 23, 2013 at 10:33.
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Old   June 23, 2013, 06:52
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Sijal Ahmed Memon (turboenginner@gmail.com)
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Use fan condition and specify pressure jump. Be careful in selecting sign for pressure jump.

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Old   June 23, 2013, 10:31
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I did it already. the problem is the flow is pass throw the walls which I specify to the boundaries around the fan zone. I want flow just passing throw the inlet, outlet of the fan zone, not the walls.
do you have any solution for this issue?
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