I simplified the analysis to a single pipe with a 90 ELL and use the automatic meshing for CFD and I think I ran into the new CAD handling issue here. This time it meshed the pipe and ELL just fine but it treated it as a single solid object. See here:
So I cannot select any of the two input and output faces for boundary conditions in the simulation.
Question about the CAD though. When reviewing some of the public projects for internal CFD analysis, I noticed that some of the Geometries are shells and some are solids.
What are the actual requirement for the CAD drawings when doing an internal CFD analysis?
I know the geometry has to be closed (i.e. water tight) but does it also have to be hollow as well?
Should I run the shell command in OnShape before importing it to SimScale? I didn’t think it mattered.