Problem in overset postprocessing
 

Hi all,

I've run the simpleRotor case using overPimpleFoam solver.
Everything is fine during the calculation.
However, I have an issue when I want to display the results in paraview (see attached picture).
I think it's an issue in Paraview but I am not sure.
Do you have idea?
Thank you,

Hi Adrien,

To me it seems, that more parts overlays each other. It seems that all meshparts were chosen to be shown in paraview menu on the left side (patches and also internalMesh) at once or some similar problem. If that is the case, chose just patches or internalMesh at once to be shown.

Cheers,
Robin

Hi Robin,

Thanks for your reply.
I thought the same thing but only internalMesh is activated.
You can find attached another view of the mesh. It seems that the background is still fully present, even in the "hole" region.

Adrien

You have to do threshold or clip in order to eliminate the fringe (overlap) regions. I guess there is a kind of IBLANK attribute/variable that comes along with the solution...

Same result when I do a clip (see attachment).

You didnt remove the fringe region it seems to me, and tou need a hole in the background mesh. Have in mind that the background grid should also be clipped. Im not familiar with OF overset, but i have produced overset results and visualized with paraview. You should have a scalar field describing

It's a tutorial from Openfoam library.
$FOAM_TUTORIALS/incompressible/overPimpleDyMFoam/simpleRotor
I've just run the ./Allrun script.
I don't know how to remove this region.
The mesh region present are:
- internalmesh
- overset
- walls
- hole
- frontAndback

Hi!


Here you can find a brief explanation about the regions:
https://www.openfoam.com/releases/op...merics-overset


If you run the simulation, there will be a scalar field called cellTypes. This will tell you which cell is calculated, which is not, and which is interpolated of the background mesh. If you set a treshold for cellType between 0 and 1, you'll see only the calculated and the interpolated cells.

Ok, got it.
Thanks for your help.