A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Boundary conditions

DOI: 10.1615/thermopedia.009173


Opaque and Diffuse Walls with Prescribed Temperature

In the article “Mathematical Formulation”, the boundary condition of the radiative transfer equation (RTE) for an opaque surface that emits and reflects diffusely was given (Modest, 2003):

(1)

In this equation Iw(rw, s) is the radiation intensity leaving the boundary surface, I(rw, s′) the radiation intensity in s′ direction arriving at that surface, Ib(rw) = Ibw the blackbody radiation intensity at the temperature of the boundary surface, ε the surface emissivity, ρ the surface reflectivity, and nf the outward unit vector normal to the surface, pointing from the surface to the medium. Equation (1) holds on a spectral basis. If the medium and the walls are grey, then the radiation ...

You need a subscription to view the full text of the article.

If you already have the subscription, please login here
If you want to subscribe to THERMOPEDIA™ please make your request here.
Number of views: 7155 Article added: 24 September 2012 Article last modified: 24 September 2012 © Copyright 2010-2017 Back to top