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How to set the emissivity of semi-transparent wall

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Old   April 15, 2005, 17:19
Default How to set the emissivity of semi-transparent wall
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Thomas
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Hello fluent users,

im using the discrete ordinate modell with the "non gray radiation" options to simualte the behavior of solar radiation passing through a float glass. I defined five wavelength bands and different absorption coefficient which depends on the wavelength. But I didnīt find a possibility to set the emissivity for the bands on a semi-transparent (double sided) wall. I could set the diffuse fraction, and thats all. For opaque walls there is a possibility to set the emissivity for each band. If there should be no possibility to change/set the emissivity for a (double sided) semi-transparent wall, what emissivity does Fluent use instead?

Thanks for your help Thomas
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Old   July 28, 2009, 14:24
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phil
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I beleive the reflectance for a double sided wall is calculated based on the refractive indices of the adjacent continuums.
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Old   June 27, 2013, 02:53
Default Similar problem.
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Hi,

I am also facing a similar problem,any solution?
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