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-   -   [Ask] Methane and temperature distribution in mining (http://www.cfd-online.com/Forums/openfoam/94688-ask-methane-temperature-distribution-mining.html)

jundika November 22, 2011 20:52

[Ask] Methane and temperature distribution in mining
 
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?


Jundika

marupio November 23, 2011 11:09

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.

mturcios777 November 23, 2011 12:29

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.

jundika November 24, 2011 03:28

Quote:

Originally Posted by marupio (Post 333297)
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?

Quote:

Originally Posted by mturcios777 (Post 333312)
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.

marupio November 24, 2011 09:33

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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