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July 21, 2021, 12:16 |
Soot modelling
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#1 |
New Member
Join Date: Jul 2021
Posts: 3
Rep Power: 5 |
Hello,
I am new to the use of OpenFoam in Fire Modelling, and I am wondering what is the difference between the two soot models available (mixtureFractionSoot<gasEThermoPhysics> and mixtureFractionSoot<gasHThermoPhysics>) and also what do the coefficients mean (nuSoot and Wsoot). I already looked on google and on openfoam.org / openfoam.com + on this forum and it seems like my question hasn't been asked before. Thanks |
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July 22, 2021, 05:41 |
By looking a bit deeper I found an answer to by second question
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#2 |
New Member
Join Date: Jul 2021
Posts: 3
Rep Power: 5 |
http://www.tfd.chalmers.se/~hani/kur...sh_revised.pdf :
WSoot = molecular weight of soot nuSoot= number of moles of soot I still dont get the difference between the two soot models though, if anyone can help |
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July 22, 2021, 07:01 |
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#3 |
Senior Member
Yann
Join Date: Apr 2012
Location: France
Posts: 1,193
Rep Power: 27 |
Hi Margaux,
To my knowledge, there is only one soot model implemented in OpenFOAM: mixtureFraction. (https://github.com/OpenFOAM/OpenFOAM...tureFraction.H) The difference between gasEThermoPhysics and gasHThermoPhysics is only related to the thermophysical properties. You can either choose a thermo package based on the enthalpy (H) or the internal energy (E). The form of energy you are using is defined in thermoType in the thermophysicalProperties file. Have a look here : https://cfd.direct/openfoam/user-gui...#x36-2690007.1 It doesn't make a difference in the soot model, it only changes the form of the energy being solved. Cheers, Yann |
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July 22, 2021, 09:40 |
very clear answer !
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#4 |
New Member
Join Date: Jul 2021
Posts: 3
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Thank you for your answer, I get the difference now !
have a nice day |
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March 12, 2023, 06:06 |
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#5 | |
New Member
陈玮
Join Date: Mar 2022
Posts: 10
Rep Power: 4 |
Quote:
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Tags |
firefoam, mixturefractionsoot, soot |
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