Hall effects on an unsteady magneto-convection and radiative heat transfer past a porous plate

Alexandria Engineering Journal

R.N. Jana¹  S.K. Guchhait¹  S. Das²  O.D. Makinde³ 

[1] Department of Applied Mathematics, Vidyasagar University, Midnapore 721 102, India;Department of Mathematics, University of Gour Banga, Malda 732 103, India;Faculty of Military Science, Stellenbosch University, Private Bag X2, Saldanha 7395, South Africa;

关键词: Magneto-convection;    Hall currents;    Thermal radiation;    Porous plate;   

DOI  :  10.1016/j.aej.2016.04.027

来源: DOAJ

【 摘 要 】

Hall effects on an unsteady magnetohydrodynamic (MHD) free convective flow of a viscous incompressible electrically conducting optically thick radiating fluid past a vertical porous plate in the presence of a uniform transverse magnetic field are examined. The governing equations are solved numerically using the fourth-order Runge–Kutta–Fehlberg method with the shooting technique. Effects of the pertinent parameters on the flow field, temperature distribution, shear stresses and rate of heat transfer at the plate are presented in graphs and tables followed by a quantitative discussion. The results reveal that the flow field and the temperature distribution are greatly influenced by thermal radiation parameter. Hall currents moderate the flow field significantly. Suction (or injection) has a profound effect on the boundary layer thickness in which the suction reduces the thermal boundary layer thickness whereas injection thickens it.

【 授权许可】

Unknown