Fluent Error message when importing mesh

amarendernag · August 8, 2012, 06:49

Hello,

I am new to Fluent software. I am using Ansys 13.
When I am importing a mesh to Fluent, it is showing the following message.

785292 nodes, binary.
34721 nodes, binary.
9135883 mixed interior faces, zone 1, binary.
6737 triangular wall faces, zone 5, binary.
563 mixed velocity-inlet faces, zone 6, binary.
515 mixed pressure-outlet faces, zone 7, binary.
41460 mixed symmetry faces, zone 8, binary.
17763 triangular wall faces, zone 9, binary.
4554076 mixed cells, zone 2, binary.

Building...
mesh
Warning: ST_Malloc: out of memory.malloc_storage: unable to malloc face-dr1, size 109630596, t 1, myid 1000000.

Error:
FLUENT received fatal signal (ACCESS_VIOLATION)
1. Note exact events leading to error.
2. Save case/data under new name.
3. Exit program and restart to continue.
4. Report error to your distributor.
Error Object: #f

Preparing mesh for display...
Done.

Preparing mesh for display...
Done.
Reading Settings file C:\Users\amarendernag\Documents\ansysfiles\car_fil es\dp0\FFF\Fluent\FFF.set...

Error: SET-CDR!: invalid argument [1]: wrong type [not a pair]
Error Object: #f

Setting Post Processing and Surfaces information ...
Error: lvectorlength: wta(1)
Error Object: ()

Please help me to overcome this problem.

RodriguezFatz · August 9, 2012, 10:49

It seems like you are running out of memory. Could that be possible?

amarendernag · August 9, 2012, 13:57

Thank you for the reply.
The machine which I am using has 2gb ram 2ghz core2 duo processor.
I will relax the meshing part a bit so that required memory reduces and then shoot it in the Fluent.

RodriguezFatz · August 9, 2012, 14:05

Quote:

Originally Posted by amarendernag

Thank you for the reply.
The machine which I am using has 2gb ram 2ghz core2 duo processor.
I will relax the meshing part a bit so that required memory reduces and then shoot it in the Fluent.

You want to run a mesh with 4.5 million cells on a single machine? Reduce it by a factor of 10 to 450000, even this will take a lot of time.

Touré · August 10, 2012, 18:47

It took me 20G RAM and 8 processors for only 8 millions of cells.
Make a kind of ratio to see the limits of your computer for 4554076 cells.

vnm · August 15, 2012, 07:54

You require minimum of 12 GB RAM for such a karge number of nodes. Either reduce number of nodes or increase RAM of your machine

Vidit Sharma · August 15, 2012, 08:16

You need to limit your number of cells up to 2.5 million... or you need a powerful computer to work on..

August 8, 2012, 06:49	Fluent Error message when importing mesh	#1
amarendernag New Member Amarender Join Date: Aug 2012 Posts: 5 Rep Power: 14	Hello, I am new to Fluent software. I am using Ansys 13. When I am importing a mesh to Fluent, it is showing the following message. 785292 nodes, binary. 34721 nodes, binary. 9135883 mixed interior faces, zone 1, binary. 6737 triangular wall faces, zone 5, binary. 563 mixed velocity-inlet faces, zone 6, binary. 515 mixed pressure-outlet faces, zone 7, binary. 41460 mixed symmetry faces, zone 8, binary. 17763 triangular wall faces, zone 9, binary. 4554076 mixed cells, zone 2, binary. Building... mesh Warning: ST_Malloc: out of memory.malloc_storage: unable to malloc face-dr1, size 109630596, t 1, myid 1000000. Error: FLUENT received fatal signal (ACCESS_VIOLATION) 1. Note exact events leading to error. 2. Save case/data under new name. 3. Exit program and restart to continue. 4. Report error to your distributor. Error Object: #f Preparing mesh for display... Done. Preparing mesh for display... Done. Reading Settings file C:\Users\amarendernag\Documents\ansysfiles\car_fil es\dp0\FFF\Fluent\FFF.set... Error: SET-CDR!: invalid argument [1]: wrong type [not a pair] Error Object: #f Setting Post Processing and Surfaces information ... Error: lvectorlength: wta(1) Error Object: () Please help me to overcome this problem.

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August 9, 2012, 10:49		#2
RodriguezFatz Senior Member Philipp Join Date: Jun 2011 Location: Germany Posts: 1,297 Rep Power: 27	It seems like you are running out of memory. Could that be possible?

August 9, 2012, 13:57		#3
amarendernag New Member Amarender Join Date: Aug 2012 Posts: 5 Rep Power: 14	Thank you for the reply. The machine which I am using has 2gb ram 2ghz core2 duo processor. I will relax the meshing part a bit so that required memory reduces and then shoot it in the Fluent.

August 10, 2012, 18:47		#5
Touré Member Guiliguili Join Date: Aug 2010 Location: Montréal Posts: 97 Rep Power: 16	It took me 20G RAM and 8 processors for only 8 millions of cells. Make a kind of ratio to see the limits of your computer for 4554076 cells.

August 15, 2012, 07:54		#6
vnm New Member Join Date: Jun 2009 Posts: 15 Rep Power: 17	You require minimum of 12 GB RAM for such a karge number of nodes. Either reduce number of nodes or increase RAM of your machine

August 15, 2012, 08:16		#7
Vidit Sharma Member Vidit Sharma Join Date: Aug 2012 Location: Delhi, India Posts: 32 Rep Power: 14	You need to limit your number of cells up to 2.5 million... or you need a powerful computer to work on..