[Danath]

Hello i want to set the boundary conditons for internal faces

i run simple
how to set the internal faces for P ,U i just want the fluid flow through the face and no special boundary condition

[openfoam_user]

Dear Evangelos,

did you find an answer ?

I have the same kind of problem. I want to set a boundary condition for a patch inside the flow domain. Let me know.

Regards,
Stephane.

[Danath]

Originally Posted by openfoam_user

Dear Evangelos,

did you find an answer ?

I have the same kind of problem. I want to set a boundary condition for a patch inside the flow domain. Let me know.

Regards,
Stephane.

Hello ! No yet !

but if you want to connect volumes and eliminate the internal faces try " merge faces " using Gambit

[wyldckat]

Greetings to all!

Originally Posted by openfoam_user

I want to set a boundary condition for a patch inside the flow domain.

It's possible to do this, but it depends on what exactly you want to do.

For example, there is a tutorial named "TJunctionFan", located in "incompressible/pimpleFoam/TJunctionFan", which creates a cyclic baffle. It then uses a special boundary condition of type "fan"... well, the specifics are in the file "system/createBafflesDict" and in "system/topoSetDict" you can see how the cell faces are selected for later converting to the cyclic baffles.

@Evangelos: creating a faceSet or faceZoneSet might be enough, if you want to calculate the mass-flow going through the selected faces, or some kind of value monitor. These are selected using topoSet, as described in the aforementioned tutorial.

Best regards,
Bruno