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polyDualMesh results in non-planar faces and non-convex cells |
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September 13, 2012, 08:47 |
polyDualMesh results in non-planar faces and non-convex cells
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Senior Member
Tomislav Maric
Join Date: Mar 2009
Location: Darmstadt, Germany
Posts: 284
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Hi everyone,
I have an extremely simple domain: a box of dimensions [0,1]^3 which is meshed with tetrahedrons using the Netgen algorithm of Salome (version 6.4.0, 64 bit). When I use the polyDualMesh to generate a polyhedral mesh of the boxed domain, I get cells which are non-convex and have non-planar faces. Here is a picture of such a cell. I've tried multiple feature angles, although the 90 degrees seems most sensible for a simple box domain. Any advice on this? Here's the case with the .unv of the tetrahedral mesh. Note: creating a more regular tetrahedral mesh using a decomposition of hex cells results in a combination of hex-poly cells, where the polyhedra are convex with planar faces, but the cell aspect ratio is kind of high (around 2). Is there a way to get a good polyhedral mesh using purely tet mesh generation algorithms such as Netgen? Last edited by tomislav_maric; September 13, 2012 at 09:33. |
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