Strange rendering of result in Paraview

[TimScottz8]

Hi
I’ve asked the Paraview forum this question and they thought it might have something to do with my meshing, but I’m at a loss to know why so I thought I’d ask here. I’ve created a very simple wing with a tip and meshed it using SnappyHexMesh in as simple a way as I could. Then run it through openFoam and got a nice converged result. The problem happens when I view the results in Paraview. When I reduce the opacity of the internal mesh I got a random visible mesh inside my domain that obscures the result. I’ve attached the Freecad file that generated this issue. Any help on resolving this issue is gratefully received
Regards
Tim

Here’s the view in Paraview I get

Aerofoil.FCStd (96.3 KB)

[oliveroxtoby]

Hi
I’ve asked the Paraview forum this question and they thought it might have something to do with my meshing, but I’m at a loss to know why so I thought I’d ask here. I’ve created a very simple wing with a tip and meshed it using SnappyHexMesh in as simple a way as I could. Then run it through openFoam and got a nice converged result. The problem happens when I view the results in Paraview. When I reduce the opacity of the internal mesh I got a random visible mesh inside my domain that obscures the result. I’ve attached the Freecad file that generated this issue. Any help on resolving this issue is gratefully received
Regards
Tim

Here’s the view in Paraview I get
Screenshot_20211229_213322.png

This is an artifact of the way the parallel decomposed mesh is displayed in Paraview. I think you can resolve it by using the ‘Clean to grid’ filter (in Paraview).

[TimScottz8]

After a lot of fiddling I used reconstructPar and the artefact disappeared. Several mistakes I made in trying to use reconstructPar.

1. I had a space in a a folder name in the folder tree
2. There was too much nesting of folders, but after moving the containing folder to my Home folder it all worked.

Thanks for the clues to fix the problem

Tim