HALL EFFECTS ON UNSTEADY MHD REACTIVE FLOW THROUGH A POROUS CHANNEL WITH CONVECTIVE HEATING AT THE ARRHENIUS REACTION RATE

This paper deals with the study of an unsteady magnetohydrodynamic (MHD) fl ow and heat transfer of a reactive, viscous, incompressible, electrically conducting fl uid between two infi nitely long parallel porous plates where one of the plates is set into impulsive/uniformly accelerated motion in the presence of a uniform transverse magnetic fi eld at the Arrhenius reaction rate, with the Hall currents taken into account. The transient momentum equations are solved analytically with the use of the Laplace transform technique, and the velocity fi eld and shear stresses are obtained in a unifi ed closed form. The energy equation is tackled numerically using Matlab. The effects of the pertinent parameters on the fl uid velocity, temperature, shear stresses, and the heat transfer rate at the plates are investigated. The results reveal that the combined effects of magnetic fi eld, suction/injection, exothermic reaction, and variable thermal conductivity have a signifi cant impact on the hydromagnetic fl ow and heat transfer
   
Author:  S. Das, R. R. Patra, R. N. Jana, and O. D. Makindec
Keywords:  magnetohydrodynamics (MHD), Hall currents, reactive fl uid, heat transfer, porous channel
Page:  1178