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Old   April 23, 2007, 09:05
Default Volume negative
  #1
Diego Augusto
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I am having problems with elements negative volumes in the simulation of chamber of combustion of an engine diesel, what I must make?
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Old   April 23, 2007, 18:13
Default Re: Volume negative
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Glenn Horrocks
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Hi,

I have already discussed this issue in several posts. Do a search on the forum.

Glenn Horrocks
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Old   April 25, 2007, 14:12
Default Re: Volume negative
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Gert-Jan
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Try to make a mesh without negative elements. What do you use? I suspect ICEM CFD....

Gert-Jan
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Old   April 26, 2007, 08:21
Default Re: Volume negative
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Diego Augusto
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How I can make a mesh without negative elements? Yes I use ICEM CFD... Thanks a lot
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Old   April 26, 2007, 15:58
Default Re: Volume negative
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Gert-Jan
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Well, that is just a matter of experience. Do you make a hex mesh or a mix of tets-prisms? You should check the quality of your mesh before you export it to ansys format. Look for the icon with the large Q.

Good luck, Gert-Jan

www.bunova.nl
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Old   April 27, 2007, 09:34
Default Re: Volume negative
  #6
Diego Augusto
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I always look for to make this, and the quality in the majority of the cases is very good. The mesh that I make is all in the format tetra, will be that I must make in the format tetra-prism? Thanks a lot!
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