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dsking September 19, 2012 15:21

Defeaturing a CAD Model
I am trying to mesh a complex CAD geometry (made in Pro-E) with many small parts that are not really relevant to the analysis.

What are some common methods of defeaturing the geometry so that it is "CFD-friendly"?

Is it usually easier to just recreate the geometry from scratch?

diamondx September 19, 2012 18:07

use ansys designmodeler, it has a body operation option, it will allow you to delete those elements...

dsking September 21, 2012 10:28

Thanks for the reply, I was wondering if there was a more time efficient way (automated), because I have over 1000 parts in the model and deleting parts individually would be very tedious.

Trues September 21, 2012 17:05

you could explore the global mesh controls under "Defeaturing" to apply an overall limit for pinch and defeaturing tolerances. I generally have avoided these and applied local pinch controls, but you could see what that has to offer

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