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Old   August 28, 2008, 00:56
Default Radiation modelling
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can anybody tell meaning of following term in the boundary condition for a wall in thermal-->mixed external ,internal emissivity ,external radiation temp. ??

hey its really urgent

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Old   August 28, 2008, 07:36
Default Re: Radiation modelling
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external is used when u have to model radiative heat transfer from wall to out side ambient type situations

Pl specify ur requirement
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Old   August 28, 2008, 11:01
Default Re: Radiation modelling
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I want to give boundary condition for wall as :: reradiating and adiabatic

meaning i dont want to give q=0 that will make convection+radiation heat tranfer=0 which i dont want


by the way i hope i have understood meaning of external radiation somewhat like the cases such as- radiation is coming to earth from about 5k or in a tall enclosure temp of the walls concerned for analysis on ground is that so ?? thanks for the reply
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