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#1 |
New Member
Praveen
Join Date: Jun 2015
Posts: 8
Rep Power: 11 ![]() |
When I read the mesh , i get this warning: non-positive elements exist.
Please help |
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#2 |
Senior Member
Join Date: Nov 2013
Posts: 1,965
Rep Power: 26 ![]() |
What do you want help with?
What is not clear to you? The error message you get seems clear to me, I don't understand which part you don't get. |
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#3 |
New Member
Praveen
Join Date: Jun 2015
Posts: 8
Rep Power: 11 ![]() |
how can I remove these non positive volumes??
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#4 |
Senior Member
Join Date: Nov 2013
Posts: 1,965
Rep Power: 26 ![]() |
In the meshing program that you used. Something went wrong in meshing.
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#5 |
New Member
Praveen
Join Date: Jun 2015
Posts: 8
Rep Power: 11 ![]() |
I am using ICEM. I tried smoothing the mesh. But I keep on getting the same problem
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#6 |
Senior Member
Join Date: Nov 2013
Posts: 1,965
Rep Power: 26 ![]() |
I am not experienced in Icem.
But probably it has some option to show cell sizes. And you have to fix the parts that have negative cell sizes. But you are in the Fluent forum; this is not a Fluent problem but an ICEM problem, so maybe you should ask in the ICEM forum? |
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#7 |
New Member
Linh Tuan The Nguyen
Join Date: Nov 2012
Posts: 9
Rep Power: 13 ![]() |
I think 2 problems might happened:
1) The mesh around the body did not deform. You can change the option in dynamic mesh options. 2) Your time step size is too big, hence, the movement of your body is bigger than rate of deformation of the mesh. When the dynamic mesh appear, that should be something wrong with you mesh or mesh setup. I do not recommend you fix your negative mesh domain Hope it helps |
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#8 |
Senior Member
Join Date: Nov 2013
Posts: 1,965
Rep Power: 26 ![]() |
Is KPraveen using a dynamic mesh? That would have been relevant information to mention in his first post...
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Tags |
aspect ratio, mesh 3d, warnings |
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Thread | Thread Starter | Forum | Replies | Last Post |
Grid check failed (non positive volumes). | Muhammad Usman Qureshi | FLUENT | 5 | September 26, 2013 06:26 |
[GAMBIT] Connecting volumes | makaero | ANSYS Meshing & Geometry | 4 | April 15, 2010 19:18 |
non positive volumes exist | Moke | FLUENT | 1 | July 7, 2006 08:20 |
union of volumes | CHUBBY | FLUENT | 2 | May 4, 2001 06:31 |
non positive volumes | pankaj shukla | FLUENT | 4 | December 6, 1999 09:42 |