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Using surface-to-surface radiation without Kirchhoff's law assumption

Konstantinos Kakosimos

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Hello,

I wanted to use the surface-to-surface radiation physics coupled with a heat transfer in solids physics to model mutual irradiance in a channel of a specific material. I have the absorptivity and emissivity of the material, but the surface-to-surface radiation physics only allows defining the emissivity and assumes absorptivity is equal.

Is there a way to define the surface absorptivity separate from the emissivity in the S2S physics? If not, is there an alternative way to do this using the geometrical optics physics?

Thanks!


0 Replies Last Post 20 oct. 2021, 07:56 UTC−4
COMSOL Moderator

Hello Konstantinos Kakosimos

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