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ashish August 28, 2008 00:56

Radiation modelling
 
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

thaNX

DEV August 28, 2008 07:36

Re: Radiation modelling
 
external is used when u have to model radiative heat transfer from wall to out side ambient type situations

Pl specify ur requirement

ashish August 28, 2008 11:01

Re: Radiation modelling
 
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

thanx

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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