Can anyone look at this file and help me with why it won’t select the internal fluid volume for CFD work.
Hi @Sans866,
Would it be possible for you to describe the problem further? also what do you want to achieve/simulate eventually?
Thanks!
Bryan
Hello Sans86, from what i can see the problem is with the STL file you imported.
Remember, STL files approximate the geometry using flat 2d triangles, which is why your model fragmented into 169 diff parts.
The reason it won’t let you select the internal volume is directly tied to that .STL format. To extract a flow volume the software needs a perfectly closed watertight geometry.
I would reccomend that you skip the stl format for any cfd or simulation related work, its fit for 3d printing but not for simulations, use a diff file format like .STEP or .Parasolid(.x_t).
Thanks