Symmetry plane help! (with schematic)

October 10, 2007, 13:32

OK I am trying to define a symmetry plane in Star-CCM+ that has some negative geometry lying in it. How would I go about selecting the symmetry plane if the lines defining that plane are discontinuous due to the negative volume? Attached is a (very) simplified schematic of what I am trying to achieve here. Also note that there is a positive volume cylinder in my model that has an inlet BC. Not sure if that makes a difference, I don't think it would as the defined symmetry plane shouldn't have a problem with it.

Thanks in advance! John

http://img181.imageshack.us/img181/6650/symmetryra9.jpg

October 11, 2007, 11:46

Split face by angle. Make sure angle is very low so that the internal 1/2 cylinder gets defined by split.

October 10, 2007, 13:32	Symmetry plane help! (with schematic)	#1
Nate Guest Posts: n/a	OK I am trying to define a symmetry plane in Star-CCM+ that has some negative geometry lying in it. How would I go about selecting the symmetry plane if the lines defining that plane are discontinuous due to the negative volume? Attached is a (very) simplified schematic of what I am trying to achieve here. Also note that there is a positive volume cylinder in my model that has an inlet BC. Not sure if that makes a difference, I don't think it would as the defined symmetry plane shouldn't have a problem with it. Thanks in advance! John http://img181.imageshack.us/img181/6650/symmetryra9.jpg

October 11, 2007, 11:46	Re: Symmetry plane help! (with schematic)	#2
Aeron Guest Posts: n/a	Split face by angle. Make sure angle is very low so that the internal 1/2 cylinder gets defined by split.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Symmetry plane for LES in channel	Flo	Main CFD Forum	3	March 12, 2009 12:40
symmetry plane	tommy	CFX	10	February 24, 2006 05:21
Symmetry Plane	StudentAndrew	CFX	1	November 1, 2005 09:54
Symmetry Plane	Bart	Siemens	3	March 16, 2005 12:20
about symmetry plane	Hannah liang	CFX	2	August 26, 2002 16:56