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-   -   boundary condition and differenet constant properties for for two different region. (http://www.cfd-online.com/Forums/openfoam/84267-boundary-condition-differenet-constant-properties-two-different-region.html)

alvora January 25, 2011 04:17

boundary condition and differenet constant properties for for two different region.
 
Hello friends,

I am new user with openfoam. the problem geometry is the small cube inside the big cube. The small cube inside the bigger cube is surrounded by air. I want to analize the current distribution in the full domain also in small cube. So, I can't consider the small cube as wall because I have to analyze the small cube surface current distribution.

the problem is: the thermal conductivity is different for air and small cube. but, only one equation is used to solve the problem and that equation contain the thermal conductivity term. so, How I have to define the constant properties (thermal consuctivity) for two different region? and How I have to define the boundary condition at the small cube surface which is contact with air?


Anyone can help..please..
thanx for your help.

Kind regards
Alpesh

mvoss January 25, 2011 04:30

hi,
take a look at chtMultiRegionFoam.

neewbie

alvora January 25, 2011 05:08

Hi neewbie sir,

Thank you very much for quick reply..

kind regards
alpesh


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