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Absorption & scattering coefficient in P1 model used in LTNE porous media

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Old   November 29, 2016, 20:25
Cool Absorption & scattering coefficient in P1 model used in LTNE porous media
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DU Shen
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Hello everyone,

I am doing a simulation which uses the LTNE model of porous media offered by FLUENT and the UDF code to calculate the radiation transfer.

I just wonder how to acquire the absorption coefficient and the scattering coefficient of porous media. I know in several articles they used the correlation with the parameters, like porosity, pore diameter and emissivity. But my problem is the range of the these two coefficients. If I used the correlation in the article, it give me about 200 for both the two coefficient.
However, it doesn't seem adequate for the LTNE model. And I once came across a value of absorption coefficient, it's about 0.2.

Can anyone explain this to me?

Hope all you have a nice day.

Shen
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absorption coefficient, ltne, p1 model, porous media, scattering coefficient

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