ISSN Online: 2377-424X
International Heat Transfer Conference 12
Temperature field inside a gradient index absorbing-emitting medium with specular surfaces
Abstract
The radiation equilibrium temperature field in a gradient index semitransparent absorbing-emitting gray medium is analyzed. The medium is bounded by two semitransparent
specular surfaces and possesses a refractive index varying spatially or dependent on temperature. By discretizing the medium into many sublayers, a ray splitting and tracing
technique is developed to solve the radiation transfer in medium. The temperature field at radiation equilibrium is obtained based on the energy conservation. The influences of
refractive index distribution and optical thickness on the temperature field as well as the coupled effect of temperature and refractive index are examined. The results display the significant influences of gradient index on radiation transfer and the temperature distribution.