[ICEM] "Mesh has uncovered edges. ANSYS Fluent needs a complete boundary"

9317854 · May 24, 2015, 07:39

Hi,everyone.
I have a problem with meshing by ICEM CFD.

I'm blocking a 2D geometry in ICEM and then meshing & converting it to uns mesh, but when i try to export it for ansysfluent one error as follow appear.

"child killed: SIGABRT

WARNING: Mesh has uncovered edges. ANSYS Fluent needs a complete boundary (lines in 2D) or it will give a variety of errors and not read in the mesh! If this was 2D Hexa, perhaps your edges are not associated with perimeter curves".

I try too much to solve this problem,but i can't.
Please told me how i can solve this problem.

Thanks.

shereez234 · May 24, 2015, 11:07

answer is given in the error message; assosciate the edges to curves and export mesh again

9317854 · May 24, 2015, 11:42

I did it (associate edge to curve) several time, but this error appeared again. Now i don't know what should i do?

shereez234 · May 24, 2015, 12:26

May I kindly ask you to post some pictures of your mesh?

9317854 · May 24, 2015, 14:11

sure.
Please take a look and told me your opinion.

Thanks.

shereez234 · May 24, 2015, 21:59

I am sorry I meant blocking picture - or either the file - if it is okay! i will try my best then

gaza · July 7, 2016, 04:38

Quote:

Originally Posted by 9317854

Hi,everyone.
I have a problem with meshing by ICEM CFD.

I'm blocking a 2D geometry in ICEM and then meshing & converting it to uns mesh, but when i try to export it for ansysfluent one error as follow appear.

"child killed: SIGABRT

WARNING: Mesh has uncovered edges. ANSYS Fluent needs a complete boundary (lines in 2D) or it will give a variety of errors and not read in the mesh! If this was 2D Hexa, perhaps your edges are not associated with perimeter curves".

I try too much to solve this problem,but i can't.
Please told me how i can solve this problem.

Thanks.

Hi
I had the same problem and then I associated curves to edges and it solved the problem.

Phoenix78 · August 10, 2016, 14:52

Hi guys, I am wondering if you solved the error you faced? Actually, I am using ICEM to create a mesh for my airintake geometry and I faced same error (warning), this error says "the mesh has uncovered edges", please help....

gaza · August 10, 2016, 16:19

Hi
you have solution in the previous post

Phoenix78 · August 10, 2016, 16:25

The edges and curves have been associated, but the problem keeps on....

gaza · August 11, 2016, 02:49

3D or 2D mesh?

Phoenix78 · August 14, 2016, 09:38

It's 2D mesh.

gaza · August 15, 2016, 16:17

Ok. I have also met this problem in the 2d mesh. I fixed it by using Check Mesh tools.
ICEM will ask you if to delete some edges, so then choose ignore option. I hope it helps.

Phoenix78 · August 17, 2016, 09:26

Thanks bro, it works...

Far · August 21, 2016, 12:03

but the root cause is always association .

AkashK · September 20, 2016, 19:37

Quote:

Originally Posted by gaza

Hi
I had the same problem and then I associated curves to edges and it solved the problem.

I have associated every curve to edge around my boundary multiple times however this still has not resolved the error.

when I look at the "lines" of my mesh I notice that not all of the lines around my boundary have been included. However, I have associated the edge to curve for these parts and ICEM confirms the association but I still have the same error.

I have looked at the "check mesh" which highlights a number of cells, however nothing has been resolved when I clock "fix".

Please help.

gaza · September 21, 2016, 06:31

give fix wherever possible and ignore otherwise

ahmadeng · September 28, 2016, 16:47

Please i need help than anyone how to get a quality mesh good in fluent?

gaza · September 29, 2016, 06:07

Hi
attach your files on the forum

May 24, 2015, 07:39	"Mesh has uncovered edges. ANSYS Fluent needs a complete boundary"	#1
9317854 New Member Join Date: Mar 2015 Posts: 4 Rep Power: 11	Hi,everyone. I have a problem with meshing by ICEM CFD. I'm blocking a 2D geometry in ICEM and then meshing & converting it to uns mesh, but when i try to export it for ansysfluent one error as follow appear. "child killed: SIGABRT WARNING: Mesh has uncovered edges. ANSYS Fluent needs a complete boundary (lines in 2D) or it will give a variety of errors and not read in the mesh! If this was 2D Hexa, perhaps your edges are not associated with perimeter curves". I try too much to solve this problem,but i can't. Please told me how i can solve this problem. Thanks.

August 10, 2016, 16:19		#9
gaza Senior Member Przemek Join Date: Jun 2011 Posts: 249 Rep Power: 15	Hi you have solution in the previous post __________________ best regards pblasiak

August 11, 2016, 02:49		#11
gaza Senior Member Przemek Join Date: Jun 2011 Posts: 249 Rep Power: 15	3D or 2D mesh? __________________ best regards pblasiak

August 15, 2016, 16:17		#13
gaza Senior Member Przemek Join Date: Jun 2011 Posts: 249 Rep Power: 15	Ok. I have also met this problem in the 2d mesh. I fixed it by using Check Mesh tools. ICEM will ask you if to delete some edges, so then choose ignore option. I hope it helps. Phoenix78 likes this. __________________ best regards pblasiak

September 21, 2016, 06:31		#17
gaza Senior Member Przemek Join Date: Jun 2011 Posts: 249 Rep Power: 15	give fix wherever possible and ignore otherwise __________________ best regards pblasiak

May 24, 2015, 11:07		#2
shereez234 Senior Member M Sereez Join Date: Jan 2014 Location: England Posts: 352 Blog Entries: 1 Rep Power: 13	answer is given in the error message; assosciate the edges to curves and export mesh again

May 24, 2015, 11:42		#3
9317854 New Member Join Date: Mar 2015 Posts: 4 Rep Power: 11	I did it (associate edge to curve) several time, but this error appeared again. Now i don't know what should i do?

May 24, 2015, 12:26		#4
shereez234 Senior Member M Sereez Join Date: Jan 2014 Location: England Posts: 352 Blog Entries: 1 Rep Power: 13	May I kindly ask you to post some pictures of your mesh?

May 24, 2015, 21:59		#6
shereez234 Senior Member M Sereez Join Date: Jan 2014 Location: England Posts: 352 Blog Entries: 1 Rep Power: 13	I am sorry I meant blocking picture - or either the file - if it is okay! i will try my best then

August 10, 2016, 14:52		#8
Phoenix78 New Member Hussein Join Date: Aug 2016 Posts: 4 Rep Power: 9	Hi guys, I am wondering if you solved the error you faced? Actually, I am using ICEM to create a mesh for my airintake geometry and I faced same error (warning), this error says "the mesh has uncovered edges", please help....

August 10, 2016, 16:25		#10
Phoenix78 New Member Hussein Join Date: Aug 2016 Posts: 4 Rep Power: 9	The edges and curves have been associated, but the problem keeps on....

August 14, 2016, 09:38		#12
Phoenix78 New Member Hussein Join Date: Aug 2016 Posts: 4 Rep Power: 9	It's 2D mesh.

August 17, 2016, 09:26		#14
Phoenix78 New Member Hussein Join Date: Aug 2016 Posts: 4 Rep Power: 9	Thanks bro, it works...

August 21, 2016, 12:03		#15
Far Super Moderator Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,553 Blog Entries: 6 Rep Power: 54	but the root cause is always association .

September 28, 2016, 16:47	quality mesh	#18
ahmadeng New Member ahmadeng Join Date: Sep 2016 Posts: 4 Rep Power: 9	Please i need help than anyone how to get a quality mesh good in fluent?

September 29, 2016, 06:07		#19
gaza Senior Member Przemek Join Date: Jun 2011 Posts: 249 Rep Power: 15	Hi attach your files on the forum __________________ best regards pblasiak

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