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Can chtMultiRegionFoam do combustion, radiation and buoyancy?

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Old   August 22, 2015, 16:25
Default Can chtMultiRegionFoam do combustion, radiation and buoyancy?
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Johnny
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I am a new (unexperienced) OpenFoam user.
I have an unsteady conjugate heat transfer problem to solve.
As far as I could see so far, "chtMultiRegionFoam" is the convenient solver for this purpose.
However, I have additional processes that play a role: combustion, radiation and buoyancy.
Does anybody know, if these processes can also be modelled within chtMultiRegionFoam, and if not, is it possible to create a convenient solver ?
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Old   August 22, 2015, 18:28
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Quick answer: Radiation and buoyancy is already integrated into "chtMultiRegion*Foam". Combustion isn't integrated into it.

Implementing combustion into "chtMultiRegion*Foam" depends strongly on the type of simulation that you're planning to perform, because there are several types of combustion: http://www.openfoam.org/features/sta...php#TBL-1-55-1
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Old   August 23, 2015, 05:32
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Thank you very much indeed for the quick answer. The combustion model does not need to be a sophisticated one, a "simple" model would do. For example Eddy Dissipation Model, where eddy dissipation rate and the Arrhenius rate are compared and the smaller one taken to be rate limiting, based on a two-step or a single-step global reaction mechanism would be sufficient. Could you please give a hint in this direction ?
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Old   August 23, 2015, 13:00
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Quick answer: I'm not familiar enough with the implemented combustion models in OpenFOAM, so I don't know which one is the most similar to what you're asking. Nonetheless, you can check the source code for each one within the folder that is indicated by this command:
Code:
echo $FOAM_SOLVERS/combustion
As for modifying chtMultiRegionFoam, there is an example here: http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2009/ - search for "Adding electric conduction and Joule heating to chtMultiRegionFoam".
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Old   August 23, 2015, 13:40
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Thank you very much. I will check this.
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Old   January 29, 2016, 12:26
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Hi, I am curious, have you made any progress on this topic? I have the same problem to solve. Cheers. Laszlo
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buoyancy, combustion, conjugate heat trans., openfoam, radiation

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