[KyriakosPaso]

Hello.

I have a domain that i want to split it in air region and solid region. I did it with topoSet and splitMeshRegion -cellzones -overwrite. Inside the air region i've got a porous medium, which i define it in another topoSetDict (cellToZone) without splitMeshRegions. I imported the source term of the porous media by using fvOptions, but when i run the chtMultiRegionFoam, i got the message shown in the image.
Why doesn'i it read the porous zone?


47213061_304556510170052_5963947696954802176_n.png

[tobiasS]

Hey Kyriakos,
Can you upload your fvOptions, topoSetDict, and the cellZones located in constant/air/polyMesh. Obviously you have a cellZone called "inside".. May be you didn't change the name in topoSetDict.
Cheers!

[KyriakosPaso]

Hello tobiasS.


I forgot to write that the inside cellZone is my solid.
I attach the fvOptions, toposetDict1 which splits the domain in the air and the inside(solid), and the topoSetDIct where I define my porous media cellZone. I also attach the cellZones located in constant/air/polyMesh.

[tobiasS]

Hey Kyriakos,
For some reason topoSet didn't create "porousBlockage".Would you check the log file of the topoSet process, or share it also here?

[KyriakosPaso]

Hey tobiasS.

Where can I find the log file?

In addition, when i open the paraFoam, the porousBlockage zone has been created.

[tobiasS]

The file isn't generated automatically.. But normally I send the information of such processes to log file like:
topoSet -dict topoSetDict1 > topoSet.log 2>&1 &
Then you can read the file topoSet. log anytime you want.
I don't know how it's possible that paraview sees a cellZone called "porousBlockage" in the region "air" although the cellZone file don't say so. But here is a question: did you use the option "- region air" in your topoSet process? If not, the region will be created in the old constant/polyMesh.. You can check the constant/polyMesh/cellZones to proof that.

[tobiasS]

P. S. If you will use "- region air" option you have to place your topoSetDict in system/air instead of system

[KyriakosPaso]

Yes, I have tried to place it in system/air, and in system, but the problem remains.

Moreover, the fvOptions is placed in constant/air

[KyriakosPaso]

Yes you are right. In the constant/polyMesh/cellZones the porousBlockage it is created. But I run it through topoSet -dict system/air/topoSetDict.
How should i run it?

[tobiasS]

topoSet - region air > topoSet.log 2>&1 &

[tobiasS]

In this case openfoam will search for the dict in system/air so you don't need to specify system/air.. Only the name of the file placed in system/air is enough.
There is an alternative solution: you can delete your constant/polyMesh or move it to another name like constant/polyMesh.old and then move the constant/air/polyMesh to constant/polyMesh.. So you don't need to use the "-region". In this case you need only to move the polyMesh back to system/air/polyMesh after successfully creating the cellZone.

[KyriakosPaso]

I tried the second way, and everything is okey.
Thank you very much tobiasS, you helped me a lot!

[tobiasS]