Mixed convective heat transfer past a heated square porous cylinder in a horizontal channel with varying channel height / Horng-Wen Wu in Journal of heat transfer, Vol. 133 N° 2 (Fevrier 2011)  

Public ISBD [article]  inJournal of heat transfer > Vol. 133 N° 2 (Fevrier 2011) . - pp. [022503/1-10] Titre : Mixed convective heat transfer past a heated square porous cylinder in a horizontal channel with varying channel height Type de document : texte imprimé Auteurs : Horng-Wen Wu, Auteur ; Ren-Hung Wang, Auteur Année de publication : 2011 Article en page(s) : pp. [022503/1-10] Note générale : Physique Langues : Anglais (eng) Mots-clés : Heat transfer Square porous cylinder Buoyancy Darcy number Channel-to-cylinder height ratio Index. décimale : 536 Chaleur. Thermodynamique Résumé : The laminar mixed convection flow across the porous square cylinder with the heated cylinder bottom at the axis in the channel has been carried out numerically in this paper using a semi-implicit projection finite element method. The governing equations with the Brinkman–Forcheimer-extended Darcy model for the region of square porous cylinder were solved. The parameter studies including Grashof number, Darcy number, and channel-to-cylinder height ratio on heat transfer performance have been explored in detail. The results indicate that the heat transfer is augmented as the Darcy number and channel-to-cylinder height ratio increase. The buoyancy effect on the local Nusselt number is clearer for B/H=0.1 than for B/H=0.3 and B/H=0.5. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Mixed convective heat transfer past a heated square porous cylinder in a horizontal channel with varying channel height [texte imprimé] / Horng-Wen Wu, Auteur ; Ren-Hung Wang, Auteur . - 2011 . - pp. [022503/1-10]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 2 (Fevrier 2011) . - pp. [022503/1-10] Mots-clés : Heat transfer Square porous cylinder Buoyancy Darcy number Channel-to-cylinder height ratio Index. décimale : 536 Chaleur. Thermodynamique Résumé : The laminar mixed convection flow across the porous square cylinder with the heated cylinder bottom at the axis in the channel has been carried out numerically in this paper using a semi-implicit projection finite element method. The governing equations with the Brinkman–Forcheimer-extended Darcy model for the region of square porous cylinder were solved. The parameter studies including Grashof number, Darcy number, and channel-to-cylinder height ratio on heat transfer performance have been explored in detail. The results indicate that the heat transfer is augmented as the Darcy number and channel-to-cylinder height ratio increase. The buoyancy effect on the local Nusselt number is clearer for B/H=0.1 than for B/H=0.3 and B/H=0.5. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

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