[gearman]

Dear everyone!
I want to simulate a hollow cylinder internal and external flow field and temperature field based on fluent, the temperature of the top surface of the cylinder is 500℃, the air temperature outside the cylinder is 20℃, the diameter of the cylinder is 500mm, the height is 500mm, the bottom of the cylinder is a quartz glass, the thickness is 25mm. the simulation process should consider the natural convection and radiation heat transfer.
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In the modeling process, quartz glass is a semi-transparent medium, so I use DO radiative heat transfer model, I know that the transmittance of quartz glass plate is 0.9679, the reflectance is 0.0296 and the absorbance is 0.0025. How do I set the Absorption Coefficient, Scattering Coefficient, Refractive Index in the material properties of quartz glass? and Diffuse Fraction in the quartz glass boundary conditions?
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Thank you in advance, your sincerely gearman!