Processing STL mesh

Hey,

I am pretty new to Salome. So maybe my question is pretty easy.

I want to create a mesh ( cgns format) around a axial compressor blade.
The 3d Modelle of my compressor blade is in .stl data format.

I can think of 2 workflow to solve my problem maybe someone has experience with.

  1. creating the complex domains for mesh by myself. I don’t know how to do that.
  2. preferred version : I have already created a .cgns mesh with a different program and a similar geometry. I would want to recompute the mesh by just exchanging the geometry of the blade.

What is possible?