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Old   November 24, 2019, 21:52
Default fireFoam smoke modelling
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Brett
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Hi all,

I'm running a fireFoam simulation with propane as the fuel.
All going well so far.

I was wondering:
1) How do I model smoke?
2) what do the I_Lambda fields mean?
3) any thoughts on sootModels? I'm just exploring this now.

Brett
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Old   November 24, 2019, 22:12
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Attempting to briefly answer the questions :

1 : To answer with a question, do you mean soot modeling? If so, check out the smallPoolFire2D tutorial. Also, this chalmers student report : http://www.tfd.chalmers.se/~hani/kur...sh_revised.pdf.

2 : They are used for fvDOM radiation modeling.

3 : Soot modeling is incredibly complex, and the model that exists with the release is very simple. There is a wealth of literature on soot modeling, and quite a few on soot models in OF (e.g. https://www.researchgate.net/publica...using_OpenFOAM).

Caelan
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Old   November 24, 2019, 22:14
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Thanks heaps for the response.

Indeed I think I do, essentially soot = smoke ? that makes me sound so stupid....

I'm working with just the basics for now, I'll be theres heaps of literature and many different methods.

Thanks for the reference too.
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Old   November 24, 2019, 22:32
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soorry just to check.

so the I_Lambda are what? different radiation frequencies?
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Old   November 24, 2019, 22:36
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If I remember correctly, radiations "rays" used for the discrete ordinate method. I'm sure there is literature floating round on it (there's even a wiki page : https://en.wikipedia.org/wiki/Discrete_ordinates_method).

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fire simulation, radiation modelling, smoke modeling, soot combustion, soot model

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