Homann magnetic flow and heat transfer with uniform suction or injection

Abstract

The steady axisymmetric flow of an incompressible viscous electrically conducting fluid impinging on a permeable flat plate with heat transfer is investigated. An external uniform magnetic field as well as a uniform suction or injection are applied normal to the plate, which is maintained at a constant temperature. Numerical solutions for the governing momentum and energy equations are obtained. The effect of the magnetic field and the uniform suction or injection on both the flow and heat transfer is presented and discussed. PACS Nos.: 47.50, 47.15 Résumé : Nous étudions le flot constant axisymétrique d'un fluide visqueux incompressible et électriquement conducteur incident sur une surface plane perméable permettant les échanges de chaleur. Un champ magnétique extérieur est présent, alors qu'injection et vidange par succion se font dans une direction perpendiculaire à la plaque qui est gardée à température constante. Nous solitionnons numériquement les équations pour le moment et l'énergie du fluide. Nous évaluons et discutons les effets du champ magnétique, de l'injection et de la succion.[Traduit par la Rédaction]

The competing effects of wall transpiration and stretching on Homann stagnation-point flow

“…Weidman and Mahalingam [3] reported on the problem of Homann stagnation-point flow impinging on a transversely oscillating plate with suction. Attia [4] studied Homann hydromagnetic flow and heat transfer with uniform suction and injection. Velocity profiles were given for suction and injection in the absence of a magnetic field.…”

Analytic Solution of MHD Stagnation Point Flow over a Stretching Permeable Surface with Effects of Viscous Dissipation and Joule Heating

“…The effect of uniform suction on the Homann problem where the flat plate oscillates in its own plane is considered by Weidman and Mahalingam [11]. The effect of uniform suction or injection on the two-or three-dimensional stagnation-point flow of a conducting fluid was given by Attia [12] [13] in the presence of an externally applied uniform magnetic field. The effect of uniform suction or injection on two-dimensional stagnation point flow towards a stretching surface with heat generation was given by Attia and Seddeek [14].…”