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-   -   error while reading mesh in fluent (http://www.cfd-online.com/Forums/fluent/45077-error-while-reading-mesh-fluent.html)

swapna June 18, 2007 19:47

error while reading mesh in fluent
 
Hi,

I modeled a rectangular pipe with dimensions 125*72*1020 in Catia and exported it to Gambit.I used the clean up tools like clean short edges,holes etc to clean the model and meshed the volume using hex/wedge and cooper options.The mesh seems to be good and connected in all the ways.When I read the mesh in Fluent i see the error Reading "C:\Documents and Settings\student\mesh with no probes.msh"... 208818 nodes. 208818 mixed wall faces, zone 2. Error: no cells in zone, id = 0, ind1 = 1, indn = 0Reading Cells: failed while reading section 12.

Clearing partially read grid. Error: Read aborted due to critical error. Error Object: () Error: Error reading "C:\Documents and Settings\student\mesh with no probes.msh". Error Object: #f

Why I could have got this.Please advice me.

Thankyou all, Swapna


Thandavam June 19, 2007 10:53

Re: error while reading mesh in fluent
 
Hi,

Remshing it will solve the problem. While exporting look in to command window of for possible error. Yopu should be getting mesh was successfully exported message.

Thandavan

honey June 19, 2007 12:01

Re: error while reading mesh in fluent
 
Yes,when I exported the mesh I see the mesh was exported successfully.What do you mean by remeshing?You want me to delete the old mesh and redo the mesh or something else? Do I need to limit the mesh size depending on the dimensions?

thandavan June 19, 2007 23:20

Re: error while reading mesh in fluent
 
if ur geom is simple. give a global size in vol mesh which is reasonable. and use tet grid. leave it.

if ur geometry is having small faces then u need to mesh faces and then vol mesh.


swapna June 21, 2007 15:21

Re: error while reading mesh in fluent
 
Hi Thandavan,

Thankyou very much for replying.If you could give me ur email id i shall send u the fail.Please have a look at it and advice me.Because I tried all the possibilities and got failed. Thankyou once again very much for replying

davedong March 9, 2010 04:49

ensure the version selection is correct. using the default 2d version to open the 3d mesh may be the bug.

ethan1988 April 20, 2010 18:07

Hi

I have the similar trouble of swapna, i tried to do the volume mesh and follow to import to Fluent but it show me this message:

> Reading "C:\Users\JohnV\Desktop\Acousticwing.msh"...
897 nodes.
330 mixed wall faces, zone 2.
484 mixed wall faces, zone 3.
44 mixed wall faces, zone 4.
44 mixed wall faces, zone 5.
Error: no cells in zone, id = 0, ind1 = 1, indn = 0Reading Cells: failed while reading section 12.
Clearing partially read grid.

Error: Read aborted due to critical error.
Error Object: ()

Error: Error reading "C:\Users\JohnV\Desktop\Acousticwing.msh".
Error Object: #f

Do you know the reason of this error? Can i to send the file for your check?

Thanks.

Will Anderson January 30, 2011 13:01

partially copied mesh file
 
I received the same warning when trying to read in a mesh.

My problem was that the mesh I was trying to read in was still being copied to the import location via ftp from somewhere else. So, an incomplete mesh file was to blame for the warning message.

I'm hoping that this might help somebody and save them some time.

Ayk August 30, 2012 13:46

I had a similar problem and I found the error in my mesh. I created a 3D mesh with Hypermesh and I did it with using the drag function. So in my final mesh I had 2D and 3D elements because I needed surface elements to drag them to 3D. After deleting the 2D elements Fluent accepted the 3D mesh.

I hope this helps to solve some of your problems

asal March 31, 2013 18:27

I had the same problem. I solve this problem just by changing the path of the mesh. Just change the path of the mesh (the folder which you want to read the mesh)! In the current address, fluent cannot read the mesh.


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