eng Science and Education Publishing Applied Mathematics and Physics 2013-10-09 1 1 78 89 10.12691/amp-1-3-5 AMP2013135 article Sanatan Das jana261171@yahoo.co.in 1 Rabindra Nath Jana 2 Department of Mathematics, University of Gour Banga, Malda, India Department of Applied Mathematics, Vidyasagar University, Midnapore, India Effects of magnetic field and suction/injection on the entropy generation in a flow of a viscous incompressible electrically conducting fluid between two infinite horizontal parallel porous plates under a constant pressure gradient have been studied. An exact solution of governing equation has been obtained in closed form. The entropy generation number and the Bejan number are also obtained. The influences of each of the governing parameters on velocity, temperature, entropy generation and Bejan number are discussed with the aid of graphs. It is observed that the magnetic field tends to increase the entropy generation within the channel. http://pubs.sciepub.com/amp/1/3/5/amp-1-3-5.pdf MHD flow porous channel Reynolds number entropy generation number Bejan number