[Other] Selecting of "negative space" -- CFD Online Discussion Forums

September 7, 2024, 05:39	Selecting of "negative space"	#1
basilwatson Member Stephen Join Date: Mar 2009 Posts: 44 Rep Power: 17	Hi all Im not even sure how to ask this! Many moons ago, On You tube I was watching someone prepare a case for OpenFOAM They drew the model then either meshed the complete model then subtracted the positive parts leaving the spaces between or in the Cad file did a similar thing ( boolean subtraction?) Say I want to look at oil flowing through a pipe draw the OD. ID the "negative space would be the ID face If anyone can steer me in the right direction or remember the Youtube video I would be grateful Kind Regards Stephen Last edited by basilwatson; September 7, 2024 at 07:51.

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