Department of Mathematics, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt
*Preparatory Year Unit, Al-Qassim University, P.O. Box 6595, Al-Qassim, Buraidah: 51452 Saudi Arabia, E-mail address: nasser_522000@yahoo.com.
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The present investigation is concerned with the unsteady laminar magnetohydrodynamic (MHD) flow of an electrically conducting viscous fluid through porous medium on a porous rotating disk with heat transfer in the presence of radiation. The induced magnetic field is neglected while the electron-atom collision frequency is assumed to be relatively high, so that the Hall effect is assumed to exist. The effects of thermal conductivity, radiative heat flux, Hall current, uniform magnetic field, variable fluid properties and suction/injection on the flow are investigated. The dimensionless unsteady governing equations are solved numerically by using Chebshevpseudospectral method and the effects of various parameters entering the problem are discussed with graphs.
Chebyshev pseudospectral method, Hall current, Radiation, Unsteady flow, Porous medium, Rotating disk, Variable properties
