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Abstract

In this Paper, an investigation of the heat and mass transfer on the flow of an oscillatory convective MHD viscous incompressible, radiating and electrically conducting second grade fluid in a vertical porous rotating channel in slip flow regime and taking Hall current into account is carried out. The fluid is assumed to be gray, absorbing and emitting radiation out in non scattering medium. The MHD flow is assumed to be laminar and fully developed. A closed form solutions of the equations governing the flow are obtained for the velocity and temperature distributions making use of regular perturbation technique. The velocity, temperature and concentration profiles are discussed through graphically as well as skin friction coefficient, Nusselt number and Sherwood number are evaluated numerically and presented in the form of tables and discussed for different values of governing flow parameters.Key words: Hall Effect, radiating fluid, MHD oscillatory flow, rotating channel, slip flow regime. IntroductionThe study of flow in rotating porous channel is motivated by its practical applications in geophysics and engineering. Among the applications of rotating flow in a porous media to engineering disciplines, one can find the food processing industry, chemical processing industry, centrifugation filtration processes and rotating machinery. In engineering, it finds its application in MHD generator ion propulsion, MHD bearing, MHD pumps, MHD boundary layer control of re-entry vehicles etc. Several scholars viz. Hall effect on unsteady MHD free and forced convection flow in a porous rotating channel has been investigated by several researchers