Meshing Failure Due to Memory Issues on Downloaded Car Model

I’m trying to run a mesh on a downloaded car model (STL format), but the meshing process keeps restarting and eventually fails due to memory issues. I’ve attempted both standard and manual meshing settings with adjusted refinements, and tried numerous models of the same car, but the problem persists.

Does anyone know what I can do to fix this? It’s for a class project and I need to figure this out.

Thanks in advance!

Hi @jhenry011, thanks for posting

The usual advice we provide users is not to go with STL models in the first place. Due to their faceted nature and since the mesher will fit elements onto surfaces, they are really not ideal to work with (especially with the OpenFoam based CFD solvers). SimScale will try to apply facet splitting operations on such models to merge the small facets - but more often than not there are still some “leftovers” from the process.

One potential problem might be this small “projected” edge in your geometry:

So the quick advice would be to go for a polysurface based CAD in the first place (e.g. Parasolid, STEP, SAT…)

Cheers
Igor