HALL-EFFECTS ON HYDROMAGNETIC FLOW OVER A PERMEABLE BED

Hydromagnetic forced convection in a parallel plate channel bounded by a rigid insulated plate and a permeable bed and permeated by a uniform transverse magnetic field has been considered taking Hall effects into account. Solutions for the flow above the bed, Zone 1 and that below the bed, Zone 2 are obtained using the matching conditions at the interface and also suitable boundary conditions at the bed. The primary flow, secondary flow, induced magnetic field components and the temperature distribution are found. The shear stresses and the Nusselt number at the bed and at the plate are calculated. Hall currents are found to exert a profound influence on the flow and heat transfer characteristics. © 1979 with the authors.