Unsteady MHD free convective heat and mass transfer from a vertical porous plate with Hall current,thermal radiation and chemical reaction effects |
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| Authors: | Ali Chamkha M A Mansour Abdelraheem Aly |
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| Institution: | 1. Manufacturing Engineering Department, The Public Authority for Applied Education and Training, Shuweikh 70654, Kuwait;2. Department of Mathematics, Faculty of Science, Assuit University, Assuit, Egypt;3. Department of Mathematics, Faculty of Science, South Valley University, Qena, Egypt |
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| Abstract: | An analysis is presented to investigate the effects of chemical reaction, thermal radiation and heat generation or absorption on unsteady free convective heat and mass transfer along an infinite vertical porous plate in the presence of a transverse magnetic field and Hall current. The governing partial differential equations are formulated and transformed by using a similarity transformation into a system of ordinary differential equations. The resulting equations are solved numerically using a fourth‐order Runge–Kutta scheme along with the shooting method. The Rosseland approximation is used to describe the radiative heat flux in the energy equation. Numerical results for the velocity, temperature and concentration distributions are shown graphically for different parametric values. The effects of parameters on the local friction coefficients, the Nusselt number and Sherwood numbers are depicted in tabulated form. Copyright © 2009 John Wiley & Sons, Ltd. |
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| Keywords: | MHD radiation chemical reaction unsteady flow Hall current heat generation/absorption |
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