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Old   June 29, 2006, 06:41
Default Negative volume in ICEM CFD
  #1
hagupta
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Hi all,

I am trying to hex-mesh my geometry in ICEM-CFD. I am getting some negative volume elements as can be seen in the link. The elements shown in the link are the only negative volume elements. http://ez-files.net/download2.php?a=...9bb952c19dfa0f

The geometry consists of a cylinder having three baloon shaped surfaces on the curved surface of the cylinder as seen. The screenshot in the link shows the region of the cylinder where the ballon shaped surfaces lie.

The negative volumes come up the moment I collapse certain blocks to get the blocks as seen.

What could be the cause of the same?

Any help or queries are appreciated.
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Old   June 29, 2006, 06:52
Default Re: Negative volume in ICEM CFD
  #2
Joe
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Your link is buggered usw www.imageshack.us
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Old   June 29, 2006, 07:05
Default Re: Negative volume in ICEM CFD
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hagupta
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This link should work http://img48.imageshack.us/img48/9466/screenshot4fn.png

Thanks Joe
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Old   June 29, 2006, 09:38
Default Re: Negative volume in ICEM CFD
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myron
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Go to Blocking > Check/Fix Blocks. Run 'Fix Inverted Blocks' then run 'Check/Fix'. See if that helps.
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Old   June 30, 2006, 07:20
Default Re: Negative volume in ICEM CFD
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hagupta
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Thanks, it removed the negative elements.
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