Documents disponibles écrits par cet auteur

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= [...]

Forced convection boundary layer flow past nonisothermal thin needles in nanofluids / T. Grosan 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. [054503/1-4] Titre : Forced convection boundary layer flow past nonisothermal thin needles in nanofluids Type de document : texte imprimé Auteurs : T. Grosan, Auteur ; I. Pop, Auteur Année de publication : 2011 Article en page(s) : pp. [054503/1-4] Note générale : Physique Langues : Anglais (eng) Mots-clés : Needle  Forced  convection  Boundary  layer  Nanofluid  Numerical  solution Index. décimale : 536 Chaleur. Thermodynamique Résumé : The classical problem of forced convection boundary layer flow and heat transfer past a needle with variable wall temperature using nanofluids is theoretically studied. The similarity equations are solved numerically for two types of metallic or nonmetallic, such as copper (Cu) and alumina (Al2O3) nanoparticles in the based fluid of water with the Prandtl number Pr=7 to investigate the effect of the solid volume fraction parameter phi of the fluid and heat transfer characteristics. The skin friction coefficient, Nusselt number, and the velocity and temperature profiles are presented and discussed. It is found that the solid volume fraction affects the fluid flow and heat transfer characteristics. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...] [article] Forced convection boundary layer flow past nonisothermal thin needles in nanofluids [texte imprimé] / T. Grosan, Auteur ; I. Pop, Auteur . - 2011 . - pp. [054503/1-4]. Physique Langues : Anglais (eng) in Journal of heat transfer > Vol. 133 N° 5 (Mai 2011) . - pp. [054503/1-4] Mots-clés : Needle  Forced  convection  Boundary  layer  Nanofluid  Numerical  solution Index. décimale : 536 Chaleur. Thermodynamique Résumé : The classical problem of forced convection boundary layer flow and heat transfer past a needle with variable wall temperature using nanofluids is theoretically studied. The similarity equations are solved numerically for two types of metallic or nonmetallic, such as copper (Cu) and alumina (Al2O3) nanoparticles in the based fluid of water with the Prandtl number Pr=7 to investigate the effect of the solid volume fraction parameter phi of the fluid and heat transfer characteristics. The skin friction coefficient, Nusselt number, and the velocity and temperature profiles are presented and discussed. It is found that the solid volume fraction affects the fluid flow and heat transfer characteristics. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.aip.org/vsearch/servlet/VerityServlet?KEY=JHTRAO&ONLINE=YES&smode= [...]

Fully developed mixed convection in a vertical channel filled by a nanofluid / T. Grosan in Journal of heat transfer, Vol. 134 N° 8 (special issue) (Août 2012) 

Public ISBD [article]  in Journal of heat transfer > Vol. 134 N° 8 (special issue) (Août 2012) . - 05 p. Titre : Fully developed mixed convection in a vertical channel filled by a nanofluid Type de document : texte imprimé Auteurs : T. Grosan, Auteur ; I. Pop, Auteur Année de publication : 2012 Article en page(s) : 05 p. Note générale : heat transfer Langues : Anglais (eng) Mots-clés : vertical  channel;  fully  developed  flow;  nanofluid;  Buongiorno  model Index. décimale : 536 Chaleur. Thermodynamique Résumé : The steady fully developed mixed convection flow between two vertical parallel plates with asymmetrical thermal and nanoparticle concentration conditions at the walls filled by a nanofluid is studied. The nanofluid model used in this paper takes into account the Brownian diffusion and the thermophoresis effects, and the analysis is based on analytical solutions. Thus, analytical expressions for the fully developed velocity, temperature, and nanoparticle concentration profiles as well as for the Nusselt and Sherwood numbers at the left wall of the channel are given. A numerical solution has been also obtained and compared with the analytical solution, the agreement being very good. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000008 [...] [article] Fully developed mixed convection in a vertical channel filled by a nanofluid [texte imprimé] / T. Grosan, Auteur ; I. Pop, Auteur . - 2012 . - 05 p. heat transfer Langues : Anglais (eng) in Journal of heat transfer > Vol. 134 N° 8 (special issue) (Août 2012) . - 05 p. Mots-clés : vertical  channel;  fully  developed  flow;  nanofluid;  Buongiorno  model Index. décimale : 536 Chaleur. Thermodynamique Résumé : The steady fully developed mixed convection flow between two vertical parallel plates with asymmetrical thermal and nanoparticle concentration conditions at the walls filled by a nanofluid is studied. The nanofluid model used in this paper takes into account the Brownian diffusion and the thermophoresis effects, and the analysis is based on analytical solutions. Thus, analytical expressions for the fully developed velocity, temperature, and nanoparticle concentration profiles as well as for the Nusselt and Sherwood numbers at the left wall of the channel are given. A numerical solution has been also obtained and compared with the analytical solution, the agreement being very good. DEWEY : 536 ISSN : 0022-1481 En ligne : http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JHTRAO000134000008 [...]