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I want to simulate the radiation heat transfer among the solid A,solid B and solid C using Femlab 3.1. The temperature of one solid is affected by the temperatures of the other two solids. So the temperatures of solid A, B and C are different.

I try to solve it by adding one 'general heat transfer' mode. But the temperature and radiation(J) in each equation are the same symbols. How to distinguish them in three solids?

I am wondering if I should add three 'general heat transfer' modes at the beginning of navigator? I can specify solid A in first mode(T1 and radiation J1 for solid A), solid B in 2nd mode(T2 and radiation J2 for solid B), and solid C in 3rd mode(T3 and J3 for solid C). Is it right? How to use coupling function? What is the meaning of and how to use the 'dest' function? How can I solve it?

Thank you very much!

Sincerely,

mageer

My e-mail: mageer@gmail.com

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