Constructal design of cavities inserted into a cylindrical solid body / Giulio Lorenzini in Journal of heat transfer, Vol. 134 N° 7 (Juillet 2012)  

Public ISBD [article]  inJournal of heat transfer > Vol. 134 N° 7 (Juillet 2012) . - 06 p. Titre : Constructal design of cavities inserted into a cylindrical solid body Type de document : texte imprimé Auteurs : Giulio Lorenzini, Auteur ; Luiz Alberto Oliveira Rocha, Auteur ; Cesare Biserni, Auteur Année de publication : 2012 Article en page(s) : 06 p. Note générale : heat transfer Langues : Anglais (eng) Mots-clés : constructal design  heat generating  cylindical solid body Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper considers the numerical optimization of the shape of cavities that intrude into a cylindrical solid body. The objective is to minimize the global thermal resistance between the solid body and the cavities. Internal heat generating is distributed uniformly throughout the solid body. The cavities are isothermal, while the solid body has adiabatic conditions on the outer surface. The total volume is fixed. The cavities are rectangular, with fixed volume and variable aspect ratio. The number of cavities of the conducting body, N, is a design parameter. The optimized geometry and performance are reported graphically as functions of the ratio between the volume of the cavities and the total volume, phi0, and N. The paper shows an example of the application of optimal distribution of imperfections principle. The results indicate that the optimal distribution of the hot spots is affected not only by the complexity of the configuration (larger N) but also by the area of cavities fraction phi0. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000007 [...] [article] Constructal design of cavities inserted into a cylindrical solid body [texte imprimé] / Giulio Lorenzini, Auteur ; Luiz Alberto Oliveira Rocha, Auteur ; Cesare Biserni, Auteur . - 2012 . - 06 p. heat transfer Langues : Anglais (eng) in Journal of heat transfer > Vol. 134 N° 7 (Juillet 2012) . - 06 p. Mots-clés : constructal design  heat generating  cylindical solid body Index. décimale : 536 Chaleur. Thermodynamique Résumé : This paper considers the numerical optimization of the shape of cavities that intrude into a cylindrical solid body. The objective is to minimize the global thermal resistance between the solid body and the cavities. Internal heat generating is distributed uniformly throughout the solid body. The cavities are isothermal, while the solid body has adiabatic conditions on the outer surface. The total volume is fixed. The cavities are rectangular, with fixed volume and variable aspect ratio. The number of cavities of the conducting body, N, is a design parameter. The optimized geometry and performance are reported graphically as functions of the ratio between the volume of the cavities and the total volume, phi0, and N. The paper shows an example of the application of optimal distribution of imperfections principle. The results indicate that the optimal distribution of the hot spots is affected not only by the complexity of the configuration (larger N) but also by the area of cavities fraction phi0. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000007 [...]

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