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Old   November 24, 2003, 10:34
Default Optical Thickness
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Hello CFX-Users,

I am setting up a model where I want to consider radiative heat transfer and CO2 and H2O vapour are definitely present.

I understand from the manuals that knowing the optical thickness is important in selecting the most appropriate Radiation model.

Does anyone know how to calculate the optical thickness?

Thank you, Jonathan
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Old   December 22, 2003, 14:25
Default Re: Optical Thickness
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Using Beer's Law and curves from Hottel and Sarofim will do the trick for H2O and CO2. Siegel and Howell's text is very helpful - Thermal Radiation Heat Transfer.

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