CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   OpenFOAM (https://www.cfd-online.com/Forums/openfoam/)
-   -   Internal sink source boundary condition - how to do? (https://www.cfd-online.com/Forums/openfoam/114434-internal-sink-source-boundary-condition-how-do.html)

Q.Cao March 11, 2013 06:47

Internal sink source boundary condition - how to do?
 
1 Attachment(s)
Hello Fomers!

I got a problem with the BC, as the follwing graph, for some reason there is a surface sink source in a flowfield, this means the both spieces A and B disappear on the single middle surface. Like they rush into a blackhole.

How can i set the bondary condition on that surface?

I tried:
1. topoSet--> to choose the middle surface
2. blockMesh: leftside { type cyclic; faces ( ); neighbourPatch rightside; } ...--> to give the patch.
3. in Terminal: createBaffles middleSurface '(leftside rightside)' -overwrite --> to split the middle surface into 2 surfaces: "leftside" and "rightside".

But i got the problem with the "cyclic" boundary condition, :eek: it seems like i can not use the "cyclic" BC for a sink source. But i really need to split that middle surface into 2, because i need 2 "outlet" for the both speices.

What can i do with that kind of BC:confused:

Attachment 19771


Thanks,
Q. Cao

nuttita July 7, 2018 21:24

Did you solve this problem?


All times are GMT -4. The time now is 09:41.