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-   -   Fluent Error message when importing mesh (http://www.cfd-online.com/Forums/fluent/105746-fluent-error-message-when-importing-mesh.html)

amarendernag August 8, 2012 05:49

Fluent Error message when importing mesh
 
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 09:49

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

amarendernag August 9, 2012 12:57

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 13:05

Quote:

Originally Posted by amarendernag (Post 376298)
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 17:47

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 06:54

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 07:16

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


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