CFX- importing geometry as .IGES file and naming boundary locations

kevinmccartin · July 7, 2015, 10:25

Hello,
I have a problem with CFX. I am doing a free surface problem around a surface piercing cylinder. I have drawn the problem in Creo Parametric and saved as a .IGES file. It imports fine in to the geometry part of CFX. The problem is when I go to the setup the geometry cannot be seen. And also I do not know how I break the one surface in to several surfaces as they are needed to label boundary locations to make things a little easier. I am following the flow over a bump VOF tutorial and it doesn't mention anything about this.
Any help would be much appreciated.
Thanks
Kevin McCartin
Mechanical Engineering Department, Institute of Technology, Tallaght

ghorrocks · July 7, 2015, 19:52

Your questions are geometry and meshing questions, not CFX questions. This means the CFX tutorials will not be relevant. You can find relevant geometry and meshing tutorials on the ANSYS customer web page.

kevinmccartin · July 8, 2015, 08:45

Thanks for your help mate much appreciated.
Kind Regards
Kevin

Steffen595 · July 9, 2015, 00:44

you have to start with workbench. Start a new CFX simulation, then work your way top to bottom.
Surfaces, easier to split them in a CAD program. Then import into Design Modeler. Create names selections. These will then follow through the mesher, Pre and Post. If you name Inlet Inlet and Outlet Outlet, the Pre will even suggest to use them for the boundary condition. Unless you are legasthenic.

kevinmccartin · July 9, 2015, 11:58

Steffen,
Thanks for your help I got the naming the locations of the boundary sorted out.

July 7, 2015, 10:25	CFX- importing geometry as .IGES file and naming boundary locations	#1
kevinmccartin New Member kevin Join Date: Sep 2014 Posts: 13 Rep Power: 12	Hello, I have a problem with CFX. I am doing a free surface problem around a surface piercing cylinder. I have drawn the problem in Creo Parametric and saved as a .IGES file. It imports fine in to the geometry part of CFX. The problem is when I go to the setup the geometry cannot be seen. And also I do not know how I break the one surface in to several surfaces as they are needed to label boundary locations to make things a little easier. I am following the flow over a bump VOF tutorial and it doesn't mention anything about this. Any help would be much appreciated. Thanks Kevin McCartin Mechanical Engineering Department, Institute of Technology, Tallaght

July 7, 2015, 19:52		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	Your questions are geometry and meshing questions, not CFX questions. This means the CFX tutorials will not be relevant. You can find relevant geometry and meshing tutorials on the ANSYS customer web page. kevinmccartin likes this.

July 8, 2015, 08:45	Ghorroks,	#3
kevinmccartin New Member kevin Join Date: Sep 2014 Posts: 13 Rep Power: 12	Thanks for your help mate much appreciated. Kind Regards Kevin

July 9, 2015, 11:58	Thanks Steffen	#5
kevinmccartin New Member kevin Join Date: Sep 2014 Posts: 13 Rep Power: 12	Steffen, Thanks for your help I got the naming the locations of the boundary sorted out.

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July 9, 2015, 00:44		#4
Steffen595 Senior Member Join Date: May 2012 Location: Melbourne Posts: 161 Rep Power: 14	you have to start with workbench. Start a new CFX simulation, then work your way top to bottom. Surfaces, easier to split them in a CAD program. Then import into Design Modeler. Create names selections. These will then follow through the mesher, Pre and Post. If you name Inlet Inlet and Outlet Outlet, the Pre will even suggest to use them for the boundary condition. Unless you are legasthenic.