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help! heat transfer through wall

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Old   January 27, 2008, 00:59
Default help! heat transfer through wall
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Hi guys,

I am currently doing simulation of combustion occur in a microchannel (3D). My problem is after the combustion occur, i should expect a non-uniform temperature distribution along the wall due to the heat transfer from the combustion mixture through the wall. however, my result only show a uniform temperature which dont really make sense. Moreover, both the inner and outer wall shares the same temperature. i have set my boundary condition of wall to coupled. anybody can help ? the error is cause by boundary conditon or meshing? anybody have idea? thanks a lot.

regards harry
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