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Combined effects of temperature and velocity jump on the heat transfer, fluid flow, and entropy rotating disk / A. Arikoglu in Journal of heat transfer, Vol. 132 N° 11 (Novembre 2010) 

Public ISBD [article]  in Journal of heat transfer > Vol. 132 N° 11 (Novembre 2010) . - pp. [111703-1/10] Titre : Combined effects of temperature and velocity jump on the heat transfer, fluid flow, and entropy rotating disk Type de document : texte imprimé Auteurs : A. Arikoglu, Auteur ; G. Komurgoz, Auteur ; I. Ozkol, Auteur Année de publication : 2010 Article en page(s) : pp. [111703-1/10] Note générale : Physique Langues : Anglais (eng) Mots-clés : Rotating  disk  flow  Temperature  jump  Velocity  slip  Entropy  generation Index. décimale : 536 Chaleur. Thermodynamique Résumé : The present work examines the effects of temperature and velocity jump conditions on heat transfer, fluid flow, and entropy generation. As the physical model, the axially symmetrical steady flow of a Newtonian ambient fluid over a single rotating disk is chosen. The related nonlinear governing equations for flow and thermal fields are reduced to ordinary differential equations by applying so-called classical approach, which was first introduced by von Karman. Instead of a numerical method, a recently developed popular semi numerical-analytical technique; differential transform method is employed to solve the reduced governing equations under the assumptions of velocity and thermal jump conditions on the disk surface. The combined effects of the velocity slip and temperature jump on the thermal and flow fields are investigated in great detail for different values of the nondimensional field parameters. In order to evaluate the efficiency of such rotating fluidic system, the entropy generation equation is derived and nondimensionalized. Additionally, special attention has been given to entropy generation, its characteristic and dependency on various parameters, i.e., group parameter, Kn and Re numbers, etc. It is observed that thermal and velocity jump strongly reduce the magnitude of entropy generation throughout the flow domain. As a result, the efficiency of the related physical system increases. A noticeable objective of this study is to give an open form solution of nonlinear field equations. The reduced recurative form of the governing equations presented gives the reader an opportunity to see the solution in open series form. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Combined effects of temperature and velocity jump on the heat transfer, fluid flow, and entropy rotating disk [texte imprimé] / A. Arikoglu, Auteur ; G. Komurgoz, Auteur ; I. Ozkol, Auteur . - 2010 . - pp. [111703-1/10]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 132 N° 11 (Novembre 2010) . - pp. [111703-1/10] Mots-clés : Rotating  disk  flow  Temperature  jump  Velocity  slip  Entropy  generation Index. décimale : 536 Chaleur. Thermodynamique Résumé : The present work examines the effects of temperature and velocity jump conditions on heat transfer, fluid flow, and entropy generation. As the physical model, the axially symmetrical steady flow of a Newtonian ambient fluid over a single rotating disk is chosen. The related nonlinear governing equations for flow and thermal fields are reduced to ordinary differential equations by applying so-called classical approach, which was first introduced by von Karman. Instead of a numerical method, a recently developed popular semi numerical-analytical technique; differential transform method is employed to solve the reduced governing equations under the assumptions of velocity and thermal jump conditions on the disk surface. The combined effects of the velocity slip and temperature jump on the thermal and flow fields are investigated in great detail for different values of the nondimensional field parameters. In order to evaluate the efficiency of such rotating fluidic system, the entropy generation equation is derived and nondimensionalized. Additionally, special attention has been given to entropy generation, its characteristic and dependency on various parameters, i.e., group parameter, Kn and Re numbers, etc. It is observed that thermal and velocity jump strongly reduce the magnitude of entropy generation throughout the flow domain. As a result, the efficiency of the related physical system increases. A noticeable objective of this study is to give an open form solution of nonlinear field equations. The reduced recurative form of the governing equations presented gives the reader an opportunity to see the solution in open series form. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]