Radiative properties of materials with surface scattering or volume scattering: A review |
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| Authors: | Qunzhi Zhu Hyunjin Lee and Zhuomin M Zhang |
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| Affiliation: | (1) School of Energy Sources and Environment Engineering, Shanghai University of Electric Power, Shanghai, 200090, China;(2) Samsung Corning Precision Glass Co., Ltd., Asan-City, 336-840, the Republic of Korea;(3) George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA |
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| Abstract: | Radiative properties of rough surfaces, particulate media and porous materials are important in thermal engineering and many
other applications. These properties are often needed for calculating heat transfer between surfaces and volume elements in
participating media, as well as for accurate radiometric temperature measurements. In this paper, recent research on scattering
of thermal radiation by rough surfaces, fibrous insulation, soot, aerogel, biological materials, and polytetrafluoroethylene
(PTFE) is reviewed. Both theoretical modeling and experimental investigation are discussed. Rigorous solutions and approximation
methods for surface scattering and volume scattering are described. The approach of using measured surface roughness statistics
in Monte Carlo simulations to predict radiative properties of rough surfaces is emphasized. The effects of various parameters
on the radiative properties of particulate media and porous materials are summarized. |
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| Keywords: | aerogel fiber particle scattering radiative properties soot surface roughness |
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