Which software to modify STL file and mesh
 

Hello Foamers!

I have to run some simulations in a water dam tunnel (see picture). I have it as a STL file, and I need to "explode" my geometry so I get a patch for inlet, outlet and the inner walls of the tunnel so that I can set boundary conditions on these patches.

What is the easiest software to use to do this? I was thinking of selecting the points of interest "manually", by clicking with the mouse, since my geometry doesn't have an easy form. Then, I would somehow export the subregions into something Foam understands.

Do anyone have some tutorials/examples I can base myself on? I was also thinking about using Salome or Gmsh, as these seems the one used by the community, but do you have any recommendation?

Any help is appreciated!

Thanks for reading ;-)

E.

Hi,

in GEOMmodule you have the opportunity to explode (menu New Entity/Explode) in Salome.

Alternative is Blender, not that good is meshlab

All can Export STL´s

Hey and thanks for your reply!

It seems like this is the functionality I am looking for!

I just installed Salome, and I can't seem to import a stl surface into the software. Then I see that you talk about GEOMmodule, and I was wondering what that was.

The thing to understand with my case, is that I never made this geometry because it is a model of a real tunnel taken with instruments, so my options to create patches for boundary conditions are limited to "manually" picking the area where the water is flowing.

I have been looking around for a tools that allows me to do this, but haven't succeeded until now.