[zhang-qiang]

For example, I have a triangular mesh for 3D volume object. In order to generate `SU2` file, I need to firstly generate triangular mesh.

Is there any powerful python package to generate tetrahedron from a triangular mesh? Any suggestion is appreciated~~~

[bigfootedrockmidget]

I suggest you try to do everything in gmsh using structured meshes.



The best thing imo that you could do is to build the 3D model from scratch from your own geometry definition. If you have some kind of irregular geometric shape already, then convert the edges of the shape to a collection of lines and load that in gmsh.If you have the mathematical definition of the shape, then use that to define the edges. For instance, you can define a circular face in gmsh and then extrude that face according to some user defined expression. See for instance the gmsh .geo file of this tutorial:
https://su2code.github.io/tutorials/...pendent_Model/


or this gmsh video: https://www.youtube.com/watch?v=VokUbWUhU-c



and the gmsh manual, specifically 2.19
https://gmsh.info/doc/texinfo/gmsh.html


I hope this helps.

[zhang-qiang]

Many thanks. I will try gmsh~~~