Negative cells in AutoGrid5

sunset · September 26, 2011, 11:49

If i find some negative cells in autoGrid 5,how can i to remove them to imrpove the mesh quality.
Can someone tell me some mothods to do it?

cfdsolver · September 29, 2011, 17:47

I'm sure your NUMECA support person can answer that question.

Hamidzoka · October 25, 2011, 06:34

Dear Sunset;
Sometimes negative cells are generated as a result of poor geometry.
review your geometry and try to import a smooth one into NUMECA.
besides that, changing the number of elements or even multi-blocking approach can help this problem. try both!

September 26, 2011, 11:49	Negative cells in AutoGrid5	#1
sunset New Member Join Date: Jun 2011 Posts: 1 Rep Power: 0	If i find some negative cells in autoGrid 5,how can i to remove them to imrpove the mesh quality. Can someone tell me some mothods to do it?

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September 29, 2011, 17:47		#2
cfdsolver New Member Join Date: Sep 2011 Posts: 2 Rep Power: 0	I'm sure your NUMECA support person can answer that question.

October 25, 2011, 06:34		#3
Hamidzoka Member Hamid Zoka Join Date: Nov 2009 Posts: 87 Rep Power: 4	Dear Sunset; Sometimes negative cells are generated as a result of poor geometry. review your geometry and try to import a smooth one into NUMECA. besides that, changing the number of elements or even multi-blocking approach can help this problem. try both!