Fluent to Foam

agostino · May 14, 2008, 11:10

Hi all.
I'm new with OpenFOAM. Could someone tell me how to to convert Fluent data to Foam? I know that already is available an utility for converting meshes but what about data?

Thanks a lot.

Agostino

caw · May 15, 2008, 01:33

Hi Agostino,

i did this only once for an interFoam calculation for the alpha field (phase volume fraction) from Fluent to gamma field in OpenFOAM.

I converted the Fluent mesh with fluent3DMeshToFoam. And then i exported the alpha field from Fluent using an interpolation file. I then copied the alpha values to the gamma field file in the OF case folder by hand.
IMPORTANT: This only works if cells are in the same order in the Fluent and the OF-mesh. That was the case for me. If it is not, you can easily spot the error in paraView ;-)

By the way, to convert OF data back to Fluent: This is easy, just use foamDataToFluent. You have to edit a dictionary to do that (example found in the source directory of this utility).

Best regards
Christian

May 14, 2008, 11:10	Hi all. I'm new with OpenFOAM	#1
agostino New Member Agostino Funel Join Date: Mar 2009 Location: Portici, Naples, Italy Posts: 1 Rep Power: 0	Hi all. I'm new with OpenFOAM. Could someone tell me how to to convert Fluent data to Foam? I know that already is available an utility for converting meshes but what about data? Thanks a lot. Agostino

May 15, 2008, 01:33	Hi Agostino, i did this onl	#2
caw Member Christian Winkler Join Date: Mar 2009 Location: Mannheim, Germany Posts: 63 Rep Power: 17	Hi Agostino, i did this only once for an interFoam calculation for the alpha field (phase volume fraction) from Fluent to gamma field in OpenFOAM. I converted the Fluent mesh with fluent3DMeshToFoam. And then i exported the alpha field from Fluent using an interpolation file. I then copied the alpha values to the gamma field file in the OF case folder by hand. IMPORTANT: This only works if cells are in the same order in the Fluent and the OF-mesh. That was the case for me. If it is not, you can easily spot the error in paraView ;-) By the way, to convert OF data back to Fluent: This is easy, just use foamDataToFluent. You have to edit a dictionary to do that (example found in the source directory of this utility). Best regards Christian

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