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Flow and heat transfer over a continuously moving flat plate in a porous medium / W. A. Khan in Journal of heat transfer, Vol. 133 N° 5 (Mai 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 5 (Mai 2011) . - pp. [054501/1-5] Titre : Flow and heat transfer over a continuously moving flat plate in a porous medium Type de document : texte imprimé Auteurs : W. A. Khan, Auteur ; I. Pop, Auteur Année de publication : 2011 Article en page(s) : pp. [054501/1-5] Note générale : Physique Langues : Anglais (eng) Mots-clés : Boundary  layers  External  flows  Flow  through  porous  media  Forced  convection  heat  radiation  Partial  differential  equations  Plates  (structures) Index. décimale : 536 Chaleur. Thermodynamique Résumé : The effects of the presence of an isotropic solid matrix and radiation on the forced convection boundary layer past a continuously moving flat plate is studied theoretically. The transformed nondimensional partial differential equations are solved numerically for some values of the governing parameters using the local nonsimilarity method. The effects of the governing parameters on both flow and heat transfer characteristics are graphed and tabulated. An interesting result of the analysis is that as the value of the radiation parameter k0 increases, a decrease in the thermal radiation's effect occurs. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Flow and heat transfer over a continuously moving flat plate in a porous medium [texte imprimé] / W. A. Khan, Auteur ; I. Pop, Auteur . - 2011 . - pp. [054501/1-5]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 5 (Mai 2011) . - pp. [054501/1-5] Mots-clés : Boundary  layers  External  flows  Flow  through  porous  media  Forced  convection  heat  radiation  Partial  differential  equations  Plates  (structures) Index. décimale : 536 Chaleur. Thermodynamique Résumé : The effects of the presence of an isotropic solid matrix and radiation on the forced convection boundary layer past a continuously moving flat plate is studied theoretically. The transformed nondimensional partial differential equations are solved numerically for some values of the governing parameters using the local nonsimilarity method. The effects of the governing parameters on both flow and heat transfer characteristics are graphed and tabulated. An interesting result of the analysis is that as the value of the radiation parameter k0 increases, a decrease in the thermal radiation's effect occurs. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

Second law analysis for free convection in non-newtonian fluids over a horizontal plate embedded in a porous medium / W. A. Khan in Journal of heat transfer, Vol. 133 N° 5 (Mai 2011) 

Public ISBD [article]  in Journal of heat transfer > Vol. 133 N° 5 (Mai 2011) . - pp. [052601/1-7] Titre : Second law analysis for free convection in non-newtonian fluids over a horizontal plate embedded in a porous medium : prescribed surface temperature Type de document : texte imprimé Auteurs : W. A. Khan, Auteur ; Rama Subba Reddy Gorla, Auteur Année de publication : 2011 Article en page(s) : pp. [052601/1-7] Note générale : Physique Langues : Anglais (eng) Mots-clés : Second  law  Non-Newtonian  Horizontal  plate  Temperature  Porous Index. décimale : 536 Chaleur. Thermodynamique Résumé : Second law characteristics of heat transfer and fluid flow due to free convection of non-Newtonian fluids over a horizontal plate with prescribed surface temperature in a porous medium are analyzed. Velocity and temperature fields are obtained numerically using an implicit finite difference method under the similarity assumption and these results are used to compute the entropy generation rate Ns, irreversibility ratio Phi, and the Bejan number Be for both Newtonian and non-Newtonian fluids. The effects of viscous frictional parameter G, Rayleigh number Ra, temperature variation lambda, axial distance (x) on the dimensionless entropy generation rate Ns, and the Bejan number Be are investigated for Newtonian and non-Newtonian fluids and presented graphically. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Second law analysis for free convection in non-newtonian fluids over a horizontal plate embedded in a porous medium : prescribed surface temperature [texte imprimé] / W. A. Khan, Auteur ; Rama Subba Reddy Gorla, Auteur . - 2011 . - pp. [052601/1-7]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 5 (Mai 2011) . - pp. [052601/1-7] Mots-clés : Second  law  Non-Newtonian  Horizontal  plate  Temperature  Porous Index. décimale : 536 Chaleur. Thermodynamique Résumé : Second law characteristics of heat transfer and fluid flow due to free convection of non-Newtonian fluids over a horizontal plate with prescribed surface temperature in a porous medium are analyzed. Velocity and temperature fields are obtained numerically using an implicit finite difference method under the similarity assumption and these results are used to compute the entropy generation rate Ns, irreversibility ratio Phi, and the Bejan number Be for both Newtonian and non-Newtonian fluids. The effects of viscous frictional parameter G, Rayleigh number Ra, temperature variation lambda, axial distance (x) on the dimensionless entropy generation rate Ns, and the Bejan number Be are investigated for Newtonian and non-Newtonian fluids and presented graphically. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]