CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Radiation heat flux calculation (http://www.cfd-online.com/Forums/fluent/121969-radiation-heat-flux-calculation.html)

chevalier_b August 9, 2013 04:40

Radiation heat flux calculation
 
Hi everybody !

I am currently trying to calculate a radiation heat flux with a 1D code to fit 3D Fluent results. The problem is that I can't find the emissivity of the material I'm using.

I went in the radiation dialog box of Fluent and for wall boundary conditions there is a number called "internal emissivity". I guess it's not what I'm looking for but what is it?

Where can I find the principle/formula Fluent uses to calculate the radiation heat flux (looked in the user guide but didn't find it)? Does anybody know if I can calculate this without using the emissivity?


All times are GMT -4. The time now is 05:34.