PLEASE HELP! Geometry solid body problem when creating external flow volume

[nelta]

The suggestion would be to try STEP or Parasolid.

Project composed of sheets and not solids

Have a look here: https://www.simscale.com/workbench/?pid=3616066946687027260&mi=geometry%3A4&mt=GEOMETRY This should work You can simply download the geometry and use it.