Re: importing stl geometry files (cylinder3d)
You can also have a look at the aorta3d example for stl handling. What you need to do is first define the flow domain by geometry primitives (which can be an stl-file but also availabe ones like a cylinder or a cube, see venturi3d example). Then, you need to chance the material numbers also by geometry primitives. We show that step by step by means of a tutorial at our next spring school.