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Heat transfer characterization of two isothermal circular cylinders in proximity / Taeheon Han in Journal of heat transfer, Vol. 132 N° 3 (Mars 2010) 

Public ISBD [article]  in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [034504-1/4] Titre : Heat transfer characterization of two isothermal circular cylinders in proximity Type de document : texte imprimé Auteurs : Taeheon Han, Auteur ; Kyung-Soo Yang, Auteur ; Kyongjun Lee, Auteur Article en page(s) : pp. [034504-1/4] Note générale : Physique Langues : Anglais (eng) Mots-clés : Convective  heat  transfer  Immersed  boundary  method  Flow  pattern  Vortex  shedding  Wake  interaction Index. décimale : 536 Chaleur. Thermodynamique Résumé : Heat transfer on two nearby isothermal circular cylinders of equal diameter immersed in a uniform crossflow at Re=120 and Pr=0.7 was numerically studied. We consider all possible arrangements of the two cylinders in terms of the distance between the two cylinders and the inclination angle with respect to the direction of the main flow. It turns out that significant changes in the characteristics of heat transfer are noticed depending on how they are positioned, resulting in quantitative changes in heat transfer coefficients of both cylinders. Collecting all of the numerical results obtained, we propose a contour diagram for averaged Nusselt number for each of the two cylinders. The geometrical symmetry implied in the flow configuration allows one to use those diagrams to estimate heat transfer rates on two isothermal circular cylinders of equal diameter arbitrarily positioned in physical space with respect to the main flow direction. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Heat transfer characterization of two isothermal circular cylinders in proximity [texte imprimé] / Taeheon Han, Auteur ; Kyung-Soo Yang, Auteur ; Kyongjun Lee, Auteur . - pp. [034504-1/4]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 3 (Mars 2010) . - pp. [034504-1/4] Mots-clés : Convective  heat  transfer  Immersed  boundary  method  Flow  pattern  Vortex  shedding  Wake  interaction Index. décimale : 536 Chaleur. Thermodynamique Résumé : Heat transfer on two nearby isothermal circular cylinders of equal diameter immersed in a uniform crossflow at Re=120 and Pr=0.7 was numerically studied. We consider all possible arrangements of the two cylinders in terms of the distance between the two cylinders and the inclination angle with respect to the direction of the main flow. It turns out that significant changes in the characteristics of heat transfer are noticed depending on how they are positioned, resulting in quantitative changes in heat transfer coefficients of both cylinders. Collecting all of the numerical results obtained, we propose a contour diagram for averaged Nusselt number for each of the two cylinders. The geometrical symmetry implied in the flow configuration allows one to use those diagrams to estimate heat transfer rates on two isothermal circular cylinders of equal diameter arbitrarily positioned in physical space with respect to the main flow direction. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]