Hexahedron 27 nodes
I have a test.geom file to generate a structured hexahedron mesh.
If I run gmsh with this option -order 1 I get what I expect that is to say
hexadrons with 8 nodes.
When I use the option -order 2 I get hexahedrons with 20 nodes.
How can I get hexahedrons with 27 nodes ?
Thanks a lot
In case you didn't notice the gmsh manpage, it describes where all these nodes are located:
Or just google for second-order hexahedron (that's how I found the above manpage), I'm sure you will find something useful there. If not, you'll have to switch to a FEM forum where the people would know something about these types of shape functions.
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