how to set multi-BC on a internal face?

Q.Cao · November 30, 2012, 10:25

Hello guys!

i am totally new with OpenFOAM and I got a problem with the BC setting.

Problem:
there is some chemical reaction happened on the interface between two blocks. There is some special BC on those faces. But i can not choose those faces and set the "boundary" in the "blockMeshDict", because they are internal faces.

How can i do? Should i try the "topoSet" and " createBuffles"?

Pls help me, help this poor man...
Thanks a lot

Qing

nimasam · December 3, 2012, 03:47

yep, those are good options, look pimpleDyMFoam to see how to use these utilities

Q.Cao · December 3, 2012, 04:43

thanks nimasam

i will try it.

But i think the "pimpleDyFoam" is a dynamic solver, in my case, there is no "moving part", the reaction surface is exactly between the 2 blockes. Can i maybe use the pimpleFoam or simpleFoam with some specical BC settings?

Qing

nimasam · December 3, 2012, 07:10

it would not be a problem
there is a tutorial there, which show you how to change internalFace to patch

December 3, 2012, 03:47		#2
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,266 Blog Entries: 1 Rep Power: 24	yep, those are good options, look pimpleDyMFoam to see how to use these utilities __________________ My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam)

December 3, 2012, 04:43		#3
Q.Cao New Member Qing, Cao Join Date: Nov 2012 Posts: 6 Rep Power: 13	thanks nimasam i will try it. But i think the "pimpleDyFoam" is a dynamic solver, in my case, there is no "moving part", the reaction surface is exactly between the 2 blockes. Can i maybe use the pimpleFoam or simpleFoam with some specical BC settings? Qing Last edited by Q.Cao; December 3, 2012 at 05:03.

December 3, 2012, 07:10		#4
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,266 Blog Entries: 1 Rep Power: 24	it would not be a problem there is a tutorial there, which show you how to change internalFace to patch __________________ My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam)

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