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A quasidependent scattering radiative properties model for high density fiber composites / Siu-Chun Lee in Journal of heat transfer, Vol. 132 N° 2 (n° spécial) (Fevrier 2010) 

Public ISBD [article]  in Journal of heat transfer > Vol. 132 N° 2 (n° spécial) (Fevrier 2010) . - pp. [023303-1/8] Titre : A quasidependent scattering radiative properties model for high density fiber composites Type de document : texte imprimé Auteurs : Siu-Chun Lee, Auteur Article en page(s) : pp. [023303-1/8] Note générale : Physique Langues : Anglais (eng) Mots-clés : Dependent  scattering  Fiber  Thermal  insulation  Fiber  composite  Woven  fabric  Heat  shield  Raiative  properties  Infinite  cylinder Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper presents a theoretical model for the radiative properties of fiber composites fabricated of spatially oriented fiber strands that contain closely spaced fibers in the Mie scattering regime. Dependent scattering within the dense fiber strands is accounted for by utilizing the solution of Maxwell's equations that included the near field interaction of cylindrical waves. Scattering between strands is shown to be uncorrelated due to their macroscopic dimensions compared with the wavelength of the incident radiation. The model is called quasidependent scattering approximation (QDA), as the radiative properties are formulated as the uncorrelated sum of the dependent scattering properties of the constituent fiber strands. The extinction coefficient, scattering coefficient, and scattering phase function are derived for fiber composites of arbitrary internal architecture. The application of the QDA model is demonstrated by means of numerical analyses on two types of fiber composites. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] A quasidependent scattering radiative properties model for high density fiber composites [texte imprimé] / Siu-Chun Lee, Auteur . - pp. [023303-1/8]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 2 (n° spécial) (Fevrier 2010) . - pp. [023303-1/8] Mots-clés : Dependent  scattering  Fiber  Thermal  insulation  Fiber  composite  Woven  fabric  Heat  shield  Raiative  properties  Infinite  cylinder Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper presents a theoretical model for the radiative properties of fiber composites fabricated of spatially oriented fiber strands that contain closely spaced fibers in the Mie scattering regime. Dependent scattering within the dense fiber strands is accounted for by utilizing the solution of Maxwell's equations that included the near field interaction of cylindrical waves. Scattering between strands is shown to be uncorrelated due to their macroscopic dimensions compared with the wavelength of the incident radiation. The model is called quasidependent scattering approximation (QDA), as the radiative properties are formulated as the uncorrelated sum of the dependent scattering properties of the constituent fiber strands. The extinction coefficient, scattering coefficient, and scattering phase function are derived for fiber composites of arbitrary internal architecture. The application of the QDA model is demonstrated by means of numerical analyses on two types of fiber composites. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]