[Gmsh] tetrahedral mesh generation from surface mesh

[Purbasha Garai]

Hello,

I need to generate volumetric tetrahedral mesh using gmsh. I have a surface
mesh in .stl format. But I am unsure how to compute the tetrahedral mesh
from here. I tried using 3D option under Mesh, But it does not work.

Thank you
Regards
Purbasha
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