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ship meshing in hex elements

  • Tomislav Maric
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14 years 11 months ago #3338 by Tomislav Maric
Replied by Tomislav Maric on topic Re:ship meshing in hex elements
I can't believe this. When I use Netgen 1D-2D algorithm it creates more or less a nice mesh, but I can't export it to .stl.

All I get is this:

begin solid
end solid

in the .stl file. But, if I go sequentially, choose Netgen 2D, Wireframe discretisation and then Node distance for 0D, two faces of the hull are great, but I get an error for the "deck" face of the ship.

Of course, THIS i can export to .stl to work on in engrid! :(

Can someone please help me mesh this? I'll try and upload the .hdf file.
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14 years 11 months ago #3370 by Joël Cugnoni
Replied by Joël Cugnoni on topic Re:ship meshing in hex elements
Hi,
For CFD, using Salome (or GMSH) to produce a 2D triangular mesh (STL or GMSH format) and then EnGrid for mixed prismatic/tetrhedral meshing is probably the best choice.

I have tried it several times and it worked well... but you problem with Salome & Netgen algorithm is really weird.

Maybe you should make sure that the geometry you want to mesh is a Volume (=a closed and oriented set of faces). Inconsistent normal orientation may be a cause of problem when exporting to STL..

Good luck

Joël Cugnoni - a.k.a admin
www.caelinux.com
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