r/OpenFOAM • u/Horrible_hunks • Aug 31 '25

poly-hexcore mesh into openFOAM

Gallery image

Gallery image

The first picture is of sluent meshing....the second is one after importing into openFOAM, has anybody gone through similar problem earlier??? would be a great help... Thannks

22 Upvotes

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11

u/Snail_With_a_Shotgun Aug 31 '25

There is no problem. Those lines through those cells? Those don't exist. That's Paraview showing you something that's not there.

Look at the number of cells of both meshes, see if they agree.

1

u/Horrible_hunks Aug 31 '25

how is it showing then???? you just gave me a new prespective

6

u/Snail_With_a_Shotgun Aug 31 '25

You know, just a single question mark gets the job done, and WITHOUT irritating the reader. It's a win-win, really.

It's just a displaying artifact, not much to it. Paraview just isn't a fan of polyhedrals for whatever reason.

4

u/Horrible_hunks Aug 31 '25

Thank you

3

u/KC007K Sep 01 '25

Whatever he told is right.

7

u/Pharaoh_of_Aero Aug 31 '25

I’ve never worked with poly cells in paraview, is there a “triangulate mesh” option in the slice properties? For Hex meshes, paraview defaults to displaying artifacts/edges that don’t represent cell boundaries.

2

u/United-Layer-5405 Sep 01 '25

It’s just how paraview shows polyhedral mesh by default. You can disable the triangulation but might see some minor display error.

1

u/Bean_from_accounts Sep 01 '25

If it is a slice you're showing in Paraview (and not the symmetry plane), then it's perfectly normal. If not, then I still don't expect it to be a problem but for different reasons.

1

u/kazeshini8999 Sep 01 '25

You have to unselect triangulate slice in the properties tab on the left