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February 25, 2010, 07:38
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negative volume
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#1 |
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Member
ali
Join Date: May 2009
Posts: 58
Rep Power: 16  |
hi all
i am getting negative volume  in gridgen meshing ..around a curve with unequal point distribution... how to solve... regards ali |
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February 26, 2010, 13:39
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#2 |
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Member
Join Date: Apr 2009
Posts: 38
Rep Power: 17 |
Dear friend tell more about your geometry and technique.if you have a 3d curve body you should divide it. for curve geometries using required stretch near for example walls caused to high skewness which result in small gap or negative volume.
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February 26, 2010, 14:44
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#3 |
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Member
bearcat
Join Date: Jul 2009
Location: Ohio
Posts: 35
Rep Power: 16  |
1. check your coordinate: right-handed or left-handed.
2. check if any cell curve intersect with the opposite grid line in one cell, this often happens within boundary cells, when grid points deviate from the original geometry. |
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February 26, 2010, 16:01
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#4 |
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Senior Member
p ding
Join Date: Mar 2009
Posts: 427
Rep Power: 19   |
Regenearte
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February 28, 2010, 04:50
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negative volume
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#5 |
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Member
ali
Join Date: May 2009
Posts: 58
Rep Power: 16 |
Thanks....
i divided the curved parts .. working now 
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