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Global spectral methods in gas radiation / V. P. Solovjov in Journal of heat transfer, Vol. 133 N° 4 (Avril 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [042701/1-9] Titre : Global spectral methods in gas radiation : the exact limit of the SLW model and its relationship to the ADF and FSK methods Type de document : texte imprimé Auteurs : V. P. Solovjov, Auteur ; B. W. Webb, Auteur Année de publication : 2011 Article en page(s) : pp. [042701/1-9] Note générale : Physique Langues : Anglais (eng) Mots-clés : Gas  radiation  SLW  model Index. décimale : 536 Chaleur. Thermodynamique Résumé : The exact form of the spectral line weighted-sum-of-gray-gases (SLW) model is developed as a limiting case of the classical SLW method when the number of gray gases in the classical model approaches infinity. Solutions of the exact SLW radiative transfer equation are obtained in the case of isothermal media. It is demonstrated that the accuracy of the exact SLW method is limited only by the accuracy of the absorption-line blackbody distribution function (ALBDF) correlations used for the characterization of the absorption spectrum. This work also theoretically and rigorously demonstrates for the first time the relationship among the SLW, absorption distribution function (ADF), and full spectrum k-distribution (FSK) models. The theoretical foundation is laid for the extension of the exact method in the case of nonisothermal media. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...] [article] Global spectral methods in gas radiation : the exact limit of the SLW model and its relationship to the ADF and FSK methods [texte imprimé] / V. P. Solovjov, Auteur ; B. W. Webb, Auteur . - 2011 . - pp. [042701/1-9]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 4 (Avril 2011) . - pp. [042701/1-9] Mots-clés : Gas  radiation  SLW  model Index. décimale : 536 Chaleur. Thermodynamique Résumé : The exact form of the spectral line weighted-sum-of-gray-gases (SLW) model is developed as a limiting case of the classical SLW method when the number of gray gases in the classical model approaches infinity. Solutions of the exact SLW radiative transfer equation are obtained in the case of isothermal media. It is demonstrated that the accuracy of the exact SLW method is limited only by the accuracy of the absorption-line blackbody distribution function (ALBDF) correlations used for the characterization of the absorption spectrum. This work also theoretically and rigorously demonstrates for the first time the relationship among the SLW, absorption distribution function (ADF), and full spectrum k-distribution (FSK) models. The theoretical foundation is laid for the extension of the exact method in the case of nonisothermal media. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&smode=strresults& [...]