cannot input CATIA *.model into gambit

soilinkin · January 10, 2011, 08:52

I have output a *.model file from CATIA, where gambit have such option to input the CATIA V4 *.model file. however when I input the file into gambit it shows "input file has units 'mm'." and the file cannot be input. Then I change the length unit into "m" in CATIA, the problem still remains. I need help to solve this thing.

-mAx- · January 11, 2011, 01:55

did you click on the "fit to window" icon? (botto-right, up to the axis)
If you don't get any error in the transcript window, it should be successfull.
Don't you have any line about "Imported" right after "Input file has units "mm"?

PS: Gambit doesn't provide any unit, you will have to scale your geometry in the sover

f0208secretx · January 11, 2011, 04:57

For your reference, I always have minor problems with .model file and it is really annoying. You could perhaps try .stp (referred in Gambit as STEP), it is better in my opinion.

soilinkin · January 11, 2011, 07:47

I have no problem in inputing .stp file, but the .model is still impossible to input.
after the "input file has units'mm'." it says "ERROR: translation failed", so it is not input into the gambit, I still don't know why.

-mAx- · January 11, 2011, 07:59

Then import Step File, unless you already imported other geometry from catia and you want absolutely work with this kind of import.
can you provide the file, we could test the import

soilinkin · January 11, 2011, 08:11

i'm just trying to mesh in CATIA and then input into gambit, it's a test with a simple model. if this fails then it is a dead end, i have to mesh in gambit or other software.
But i still want to know if anything is wrong with me or what, can anyone please create a simple .model file and try inputing into gambit to see if it works? thanks.

-mAx- · January 11, 2011, 08:20

do you have fluent for catia, with mesher, pre- post-processing and solver integretated?

soilinkin · January 11, 2011, 08:34

yes, the pre-processing is gambit.

-mAx- · January 11, 2011, 08:44

can you provide your .model file (or create a simple one)
I'll try to import it into gambit

f0208secretx · January 11, 2011, 23:56

How come you will NEED to mesh your geometries in CATIA anyway? It doesn't do you any good...

If you are trying to avoid switching softwere all the times, you can try ANSYS workbench. The work flow is user-friendly and it is easy connect pre, solver and post. But if you are trying to avoid the steps in Gambit, how come you need to import the file to it.... It's really confusing...

This is my workflow, it is simple but it is efficient after some experiences.
CATIA(V5): output .stp => Gambit: meshing and B.C. => Fluent

-mAx- · January 12, 2011, 01:47

And here is mine:
ProE: output .stp => Gambit: meshing and B.C. => OpenFOAM

January 10, 2011, 08:52	*cannot input CATIA .model into gambit**	#1
soilinkin New Member Join Date: Jan 2011 Posts: 4 Rep Power: 15	I have output a .model file from CATIA, where gambit have such option to input the CATIA V4 .model file. however when I input the file into gambit it shows "input file has units 'mm'." and the file cannot be input. Then I change the length unit into "m" in CATIA, the problem still remains. I need help to solve this thing.

January 11, 2011, 01:55		#2
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	did you click on the "fit to window" icon? (botto-right, up to the axis) If you don't get any error in the transcript window, it should be successfull. Don't you have any line about "Imported" right after "Input file has units "mm"? PS: Gambit doesn't provide any unit, you will have to scale your geometry in the sover __________________ In memory of my friend Hervé: CFD engineer & freerider

January 11, 2011, 07:59		#5
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	Then import Step File, unless you already imported other geometry from catia and you want absolutely work with this kind of import. can you provide the file, we could test the import __________________ In memory of my friend Hervé: CFD engineer & freerider

January 11, 2011, 08:20		#7
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	do you have fluent for catia, with mesher, pre- post-processing and solver integretated? __________________ In memory of my friend Hervé: CFD engineer & freerider

January 11, 2011, 08:44		#9
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	can you provide your .model file (or create a simple one) I'll try to import it into gambit __________________ In memory of my friend Hervé: CFD engineer & freerider

January 11, 2011, 04:57		#3
f0208secretx Member J.-H. Wang Join Date: Oct 2010 Posts: 72 Rep Power: 16	For your reference, I always have minor problems with .model file and it is really annoying. You could perhaps try .stp (referred in Gambit as STEP), it is better in my opinion.

January 11, 2011, 07:47		#4
soilinkin New Member Join Date: Jan 2011 Posts: 4 Rep Power: 15	I have no problem in inputing .stp file, but the .model is still impossible to input. after the "input file has units'mm'." it says "ERROR: translation failed", so it is not input into the gambit, I still don't know why.

January 11, 2011, 08:11		#6
soilinkin New Member Join Date: Jan 2011 Posts: 4 Rep Power: 15	i'm just trying to mesh in CATIA and then input into gambit, it's a test with a simple model. if this fails then it is a dead end, i have to mesh in gambit or other software. But i still want to know if anything is wrong with me or what, can anyone please create a simple .model file and try inputing into gambit to see if it works? thanks.

January 11, 2011, 08:34		#8
soilinkin New Member Join Date: Jan 2011 Posts: 4 Rep Power: 15	yes, the pre-processing is gambit.

January 11, 2011, 23:56		#10
f0208secretx Member J.-H. Wang Join Date: Oct 2010 Posts: 72 Rep Power: 16	How come you will NEED to mesh your geometries in CATIA anyway? It doesn't do you any good... If you are trying to avoid switching softwere all the times, you can try ANSYS workbench. The work flow is user-friendly and it is easy connect pre, solver and post. But if you are trying to avoid the steps in Gambit, how come you need to import the file to it.... It's really confusing... This is my workflow, it is simple but it is efficient after some experiences. CATIA(V5): output .stp => Gambit: meshing and B.C. => Fluent

January 12, 2011, 01:47		#11
-mAx- Super Moderator Maxime Perelli Join Date: Mar 2009 Location: Switzerland Posts: 3,297 Rep Power: 41	And here is mine: ProE: output .stp => Gambit: meshing and B.C. => OpenFOAM __________________ In memory of my friend Hervé: CFD engineer & freerider

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