How to fix negative volume elements in icem cfd?

January 25, 2007, 01:07

Hi friends, I have generated mesh in icem. I have negative volume elemnts. (determinanat is coming less than 1).Can anybody tell me that how i can fix this negative volume elemnts? I mean to say how can i correct them? Thanks you all

January 25, 2007, 07:46

Discussed ad nauseum already. Use the forum search function.

January 26, 2007, 16:42

If you're talking about a hex mesh - Edit Blocks > Fix Inverted Blocks. Then recompute the mesh. Should do it.

January 28, 2007, 09:27

Thanks friend Should i select negative volume elements also? bcoz i have tride above suggestion but it could nt work. May be i do not know exact use of this tool? Pls can you specify how to use this tool?

February 2, 2007, 03:22

Look out for double vertices. Sometimes there are two vertices at the same position. This happens if you get confused during cutting blocks. Let ICEM show you the number of the vertices, so you can see if this is the reason. If it is, merge the vertices.

waseeqsiddiqui · June 5, 2018, 02:59

If the negative elements are very few, delete them using the quality histogram and select the check mesh button to fix those uncovered volumes!

January 25, 2007, 01:07	How to fix negative volume elements in icem cfd?	#1
shirish Guest Posts: n/a	Hi friends, I have generated mesh in icem. I have negative volume elemnts. (determinanat is coming less than 1).Can anybody tell me that how i can fix this negative volume elemnts? I mean to say how can i correct them? Thanks you all

January 25, 2007, 07:46	Re: How to fix negative volume elements in icem cf	#2
Joe Guest Posts: n/a	Discussed ad nauseum already. Use the forum search function.

January 26, 2007, 16:42	Re: How to fix negative volume elements in icem cf	#3
myron Guest Posts: n/a	If you're talking about a hex mesh - Edit Blocks > Fix Inverted Blocks. Then recompute the mesh. Should do it.

January 28, 2007, 09:27	Re: How to fix negative volume elements in icem cf	#4
shirish Guest Posts: n/a	Thanks friend Should i select negative volume elements also? bcoz i have tride above suggestion but it could nt work. May be i do not know exact use of this tool? Pls can you specify how to use this tool?

February 2, 2007, 03:22	Re: How to fix negative volume elements in icem cf	#5
Stephan Guest Posts: n/a	Look out for double vertices. Sometimes there are two vertices at the same position. This happens if you get confused during cutting blocks. Let ICEM show you the number of the vertices, so you can see if this is the reason. If it is, merge the vertices.

June 5, 2018, 02:59	Another way	#6
waseeqsiddiqui Member MWRS Join Date: Apr 2018 Location: Islamabad Posts: 99 Rep Power: 8	If the negative elements are very few, delete them using the quality histogram and select the check mesh button to fix those uncovered volumes!

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