My question is, in principle, quite simple. I have the necessity to extrapolate the geometry from a mesh I'm using in Fluent. As a consequence, the extension of the mesh file is .msh (I should also be having the OpenFoam version of the same case). Is there any way I can extract the geometry into, i.e., stl, obj, 3ds, svg (and so on..) formats that I can later open in Blender for rendering? I tried using ICEM, without succeeding. Does FLUENT or ANSYS allow doing such an operation?
You can use GMSH wich is fa ree 3D finite element mesh generator. You can convert a mesh file .msh to a .STL (stereolithography) by:
Merge "yourmesh.msh"; // load your mesh
Delete Physicals; // delete the existing physicals
Physical Surface(1) = {xxx}; // define new physical (if necessary!!)
Then export as STL, which will only save the new physical surfaces.
GridPro , has an option to reverse engineer the geometry from a given mesh! Provided it is a hexa mesh!
Thank you for your answers. I tried doing this operation with GMSH but unfortunately I did not success. When I try to open the .msh file, I get a "syntax error".
I will try with GridPro.
I finally solved the problem. Having the mesh/test-case also for OpenFoam, there are different paths you can follow. One possible solution is achievable with ParaView and constists in selecting the desired geometry and exporting the scene in .x3d format. In order to improve the quality of the geometry, it is recommended to apply the "triangulate" filter. It is also possible to export the solution in .stl format. In order to achieve this result, before applying the "triangulate" filter it is necessary to use the "Extract Surface" filter and, subsequently, to "export.data". Both these formats are readable by different rendering softwares as, i.e. Blender.
Hello Riccardo Longo,
Is it possible to export geometry from Paraview to ANSYS or any meshing software for generating meshing.
Thanks,
vidyadhar
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