Learning Forum

[Xiong Lie]

Dear experts！  

       I have a quartz glass window in my heat transfer model and I am using the DO radiation model, how do I get the scattering and absorption coefficients（1/m） of the quartz glass?

                   Thank you inadvance!

[Rob]

From literature? 

[Xiong Lie]

Dear Rob!

       Thank you for your reply！Can the absorption and scattering coefficients of quartz glass be found directly from the literature? Or are the absorption and scattering coefficients calculated?

[Rob]

I assume so, but check the definitions you find against the Fluent documentation. I know we've found properties for some of the stanger materials on manufacturers sites before, but I don't have any links/references I can share. 

[Xiong Lie]

Dear Rob!

           Someone said that in fluent version 2021, there is a thermal property parameter "glass-silica-fused-sio2" in "GRANTA MDS Database". I was wondering, if you open the DO radiative heat transfer model, can you get the absorption and scattering coefficients of glass-silica-fused-sio2 in the GRANTA MDS Database? I don't have the module GRANTA MDS Database in my FLUENT.

[Rob]

There is a Granta MDS add on for Fluent, but it's licenced separately, and I don't know what is bundled into Student/Academic Fluent in that respect. 

Looking in the Fluent-MDS database (I have a licence) it's solid properties only, so good for stretchy-bendy type applications but doesn't contain the refraction/diffraction/reflection data. 

[Xiong Lie]

OK, thank you very much for your reply!