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Old   June 26, 2002, 14:14
Default catia mesh to fluent
  #1
mrakan
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Hi,

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

Thank you,

Mrakan
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Old   June 28, 2002, 03:58
Default Re: catia mesh to fluent
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Joern Beilke
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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 .

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Old   June 28, 2002, 07:06
Default Re: catia mesh to fluent
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mrakan
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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
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Old   July 1, 2002, 04:47
Default Re: catia mesh to fluent
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Laika
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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
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Old   July 24, 2002, 23:41
Default Re: catia mesh to fluent
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Dr. Al Witry
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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.
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Old   June 18, 2014, 12:54
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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??
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