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Hexahedral mesh on a sphere problem (external flow)

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Hexahedral mesh on a sphere problem (external flow)

Posted by Renan Lima at May 18. 2017

Hello,

I'm trying to make a structured hexaheldral mesh over a sphere, but I'm having some problems. I think I made a nice partiton according to this tutorial https://www.youtube.com/watch?v=S6R3e4Ac9jY but there are still errors.

The code is added to the post.

Thanks in advance

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Re: Hexahedral mesh on a sphere problem (external flow)

Posted by Saint Michael at May 22. 2017

Hi

It's a seam edge of the sphere who causes the meshing failure. After removing the seam edge using

NoExtraEdges_1 = geompy.RemoveExtraEdges(Partition_1, True)

the meshing passes OK. See the attached fixed script.

St.Michael

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Re: Hexahedral mesh on a sphere problem (external flow)

Posted by Renan Lima at September 07. 2017

Thanks so much. I'm sorry I didn't follow my post after a few days.

I realised that the problem was that extra edge, and the solution I found was to make more partitions to make axis-symmetric extra edges. But your idea is much simpler and more efficient, thank you.

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