www.tjprc.org editor@tjprc.org HALL CURRENT AND RADIATION EFFECTS ON MHD FREE CONVECTIVE HEAT AND MASS TRANSFER FLOW PAST AN ACCELERATED INCLINED POROUS PLATE WITH THERMAL DIFFUSION K. SIDDA REDDY & G. S. S.RAJU Department of Mathematics, JNTUA College of Engineering, Pulivendula, Andhra Pradesh., India ABSTRACT An analysis has been carried out to study the effects of Hall current and radiation of MHD free convective heat and mass transfer flow past an accelerated inclined plate with temperature and concentration in a porous medium in presence of thermal diffusion and heat source TRANSFER. Exact solutions for velocity, temperature and concentration of the flow are obtained by applying Laplace transforms. The influences of different physical parameters on velocity, temperature and species concentration are examined with the help of graphs. Also numerical values of skin friction, Nusselt number and Sherwood number are recorded in tabular form and analyzed. KEYWORDS: Free Convection Flow, Hall Current, Thermal Radiation, Heat and Mass Transfer, Thermal Diffusion Received: Jul 12, 2016; Accepted: Aug 03, 2016; Published: Aug 12, 2016; Paper Id.: IJMCARAUG20165 1 INTRODUCTION The flow problems of electrically conducting fluids are currently receiving considerable attention. MHD flows have many practical applications such as electromagnetic flow meters, electromagnetic pumps and hydromagnetic generators etc. The interest in magnetohydrodynamic (MHD) convective flows with heat transfer is renewed due to its importance in the design of MHD based equipments, generators and accelerators in geophysics, in systems like underground water and energy storage. Several scholars have shown their interest in studying MHD and heat transfer flows in porous and non-porous media. In addition, this type of flow finds applications in many engineering problems such as MHD generators, plasma studies, nuclear reactors, MHD pumps, MHD bearing and geothermal energy extractions. Many technological problems as well as natural phenomena are susceptible to MHD heat and mass transfer analysis. Geophysics concepts encounter MHD heat and mass transfer characteristics in the exchanges of conducting fluids and magnetic fields. Engineers and scientists employ many principles of MHD in the drawing of heat exchangers pumps and flow meters, in space vehicle impulsion, thermal guard, braking, power and re-entry, in creating new type of power generating systems etc. In view of technical point, MHD convection and radiation flow problems are very much considerable in the areas of planetary magnetospheres, aeronautics, chemical engineering and electronics. Several studies of the above phenomena of MHD convection have been covered by many researchers. The combined effects of convective heat and mass transfer on the flow of a viscous, incompressible and electrically conducting fluid has many engineering and geophysical applications such as in geothermal reservoirs, drying of porous solids, thermal insulation, and enhanced oil recovery, cooling of nuclear reactor and underground energy transports. Rapits and Singh [1] considered and studied the influences of uniform transverse magnetic field on the natural convection flow of a conducting fluid past an endless vertical plate for the Original Article International Journal of Mathematics and Computer Applications Research (IJMCAR) ISSN(P): 2249-6955; ISSN(E): 2249-8060 Vol. 6, Issue 4, Aug 2016, 41-62 © TJPRC Pvt. Ltd.