[wc34071209]

Hi,

It seems that I can create a cellZone using something like this:

refinementSurfaces 
{ 
    heater 
    { 
        level (0 0); 
        faceZone heater; 
        faceType internal; 

        cellZone heater; 
        cellZoneInside inside; 
    } 
}

However, the problem is that snappyHexMesh creates also a new boundary called heater and heater_slave, which I don't want to.

Even I set faceType as internal, I cannot avoid this problem.

So how can I create only a cellZone without add new boundaries?

[cbarmpar]

Hi,

Try to remove the surface from the features subdictionary.

Also try to create an empty createPatch dictionary to clean up the patches

[Eloise]

Hi,
I'm having snapping issues when trying something similar.

I have several searchablePlanes (parallel to each other) across my domain. I want the mesh to snap on all of those planes, but I don't need boundaries to be created.
Once the mesh is finished, I then remove all cells located below a plane of my choice (without having to remesh each time I need to split the mesh at a different height).
The problem with faceType internal; is that the planes are not properly snap. While if I use faceType baffle; the snap is good but I end up with walls across my domain.

Anyone knows how to get as good snap with faceType internal; as with faceType baffle;?

I can provide a small test-case if needed!
Thanks,
Eloïse

[esujby]

Hello Eloise,

I ve the same issue, however, if you remove "face type internal/baffle" command,and probably increase the refinement level of your block mesh dict, it might snap, i tried that first and it worked, but decomposing after mesh was an issue. and now that i am testing the case with the baffle or internal face type, the cell zones don't get properly refined. i don't know why

[Eloise]

Hi,
I gave up exploring this option. I decided to insert a single searchable plane of type baffle in my mesh, and use this baffle to then split my mesh and keep only the side I'm interested in. I repeat the process if I want to split along another plane.
Regards,
Eloïse

[esujby]

Hi,

interesting, i haven't tried that option actually. i would look into that now, so i am guessing for a 3D mesh, a searchable box of type baffle might be the case. i will give it a try and provide update.

cheers