Radiative flux field inside an absorbing–emitting semi-transparent slab with variable spatial refractive index at radiative conductive coupling

Autor: P.Ben Abdallah, V. Le Dez
Rok vydání: 2000
Předmět:
Zdroj: Journal of Quantitative Spectroscopy and Radiative Transfer. 67:125-137
ISSN: 0022-4073
DOI: 10.1016/s0022-4073(99)00200-9
Popis: The temperature and radiative flux fields inside an absorbing–emitting slab of semi-transparent grey medium at radiative conductive coupling has been determined with the help of a curved ray-tracing technique when the spatial variation of the refractive index in the medium is assumed to be linear. The exact expression of the radiative flux field in such a situation is derived by using previous expressions of the spatial and directional intensity field inside the medium. Results obtained for different optical depths and thermal conductivities with low and strong gradients of refractive index display significant differences from the case of a constant refractive index.
Databáze: OpenAIRE