CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   catia mesh to fluent (http://www.cfd-online.com/Forums/fluent/29947-catia-mesh-fluent.html)

mrakan June 26, 2002 15:14

catia mesh to fluent
 
Hi,

Does anybody know is it possible to import mesh from Catia and use and analyze with Fluent.

Thank you,

Mrakan

Joern Beilke June 28, 2002 04:58

Re: catia mesh to fluent
 
You probably have a catia model but not a mesh. There are several ways to deal with this but all require some additional software. It also depends on the kind of data you have in catia -- solids or surfaces .


mrakan June 28, 2002 08:06

Re: catia mesh to fluent
 
Hi Joern,

My intention is to use fluent software for heat and flow analyzes. But I realized that something to be analyzed in fluent has to be input as a mesh. I have catia V5R6 P2. You mentioned additional software. What else I need. I don't use and don't know too much about catia, but if I need as input in fluent and if I have capabilities with V5R6 P2 catia , it is worth to study and learn catia. If I need additional software, please advice which one. I know that many programs are capable of doing mesh, but I have catia as one option.

Thanks, Zoran

Laika July 1, 2002 05:47

Re: catia mesh to fluent
 
Hello,

I'd sugest to export your catia model as a step or iges-file. You can import this into Gambit. Play with the import options to find how to import the geometry as cleen as possible.

You chould do some cleaning of your model in Gambit. Afterwards you create your mesh in Gambit.

Your Catia-model should be very clean. It really should be made for cfd-analysis.

good luck

Laika, still orbiting

Dr. Al Witry July 25, 2002 00:41

Re: catia mesh to fluent
 
You will probably find that IGES is a very dirty method of translation and that STEP is not readable by a lot of meshing software.

Alternativel, CATIA can create meshes through its FEA facilities. It can also save nastran (.nas) and neutral (.out) or (.nut) files if I remember right. This is especially true for CATIA 4 and I would have thought that CATIA 5 did retain these capabilties if not added to them. If this was the case, then you can save as NASTRAN and read it into Tgrid to create Fluent's native (.msh) mesh file.

If not, then yes, you will need another software to "translate=bridge" the data. Most things here include purchase of a different software like "ICEM CFD" which I find to be very useful here. These software can be expensive but there was once a software called Rhinosaurus or something of the kind that was available for free over the internet and did do data translation operations.

Hope this helps.

mjthomp3 June 18, 2014 13:54

Quote:

Originally Posted by Dr. Al Witry
;101899
You will probably find that IGES is a very dirty method of translation and that STEP is not readable by a lot of meshing software.

Alternativel, CATIA can create meshes through its FEA facilities. It can also save nastran (.nas) and neutral (.out) or (.nut) files if I remember right. This is especially true for CATIA 4 and I would have thought that CATIA 5 did retain these capabilties if not added to them. If this was the case, then you can save as NASTRAN and read it into Tgrid to create Fluent's native (.msh) mesh file.

If not, then yes, you will need another software to "translate=bridge" the data. Most things here include purchase of a different software like "ICEM CFD" which I find to be very useful here. These software can be expensive but there was once a software called Rhinosaurus or something of the kind that was available for free over the internet and did do data translation operations.

Hope this helps.




For Some reason after I imported my catia mesh into Tgrid and exported as .msh file for FLUENT to read it read an error.....

please help on is there something wrong that i am doing here??


All times are GMT -4. The time now is 17:43.