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Old   November 22, 2011, 21:52
Default [Ask] Methane and temperature distribution in mining
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Dear All,

I am very new to OpenFOAM. I am trying to simulate temperature and methane distribution in underground coal mine (turbulent flow with heat and species transport no reaction). I have gone through the user manual to see which tutorial is appropriate for it. However, I could not find the appropiate one. reactingFoam, dieselFoam and XiFoam seem suitable but it has reaction while mine is not. Is there any suggestion for newbie like me?


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Old   November 23, 2011, 12:09
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You could probably capture the methane and temperature transport using scalar transport - combine scalarTransportFoam with a turbulent solver like pimpleFoam. For temperature transport, the "diffusion coefficient" would be your coefficient of conduction through the air. I think there's something you have to do to include the turbulence effects on the scalar transport equation. Not sure about that.
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Old   November 23, 2011, 13:29
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With any of the solvers you mentioned (dieselFoam, XiFoam and reactingFoam), you can turn off reactions by switching the option for chemistry off in the constant/chemistryProperties file.
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Old   November 24, 2011, 04:28
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Quote:
Originally Posted by marupio View Post
You could probably capture the methane and temperature transport using scalar transport - combine scalarTransportFoam with a turbulent solver like pimpleFoam. For temperature transport, the "diffusion coefficient" would be your coefficient of conduction through the air. I think there's something you have to do to include the turbulence effects on the scalar transport equation. Not sure about that.
Dear Marupio, thank you for your kind response. I am very new to this software so i do not know how to combine two solver. Can I use pimple foam instead?

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With any of the solvers you mentioned (dieselFoam, XiFoam and reactingFoam), you can turn off reactions by switching the option for chemistry off in the constant/chemistryProperties file.
Thank you for the suggestion. I will try this.
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Old   November 24, 2011, 10:33
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Hi jundika,

No you can't just use pimpleFoam because it doesn't include scalar transport. Try Macro's suggestion... I don't know much about those reacting solvers.
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