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-   -   an outlet boundary condition (http://www.cfd-online.com/Forums/openfoam/119747-outlet-boundary-condition.html)

bryant_k June 24, 2013 07:16

an outlet boundary condition
 
Hello everyone
I am confusing by an outlet boundary condition.The expression of the variable at outlet is:
Code:

d(phi)/dn=(u x e_z) dot n
where
u is the velocity vector,it is an variable also.
e_z is  the z axis unit direction vector(0 0 1).
n is the unit normal

Can you tell me how can I realize this boundary condition?

Thank you very much!

best regards!

bryant

bryant_k June 27, 2013 00:59

Hello everyone
If someone knows about this,I hope you can give me some advice.I have no idea about it.What kind of boundary condition can I use?

Thank you very much!

regards!

bryant


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