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Flow Features of a Conducting Fluid Near an Accelerated Vertical Plate in Porous Medium with Ramped Wall Temperature

Published online by Cambridge University Press:  13 March 2014

P. K. Kundu ,
K. Das  and
N. Acharya
P. K. Kundu
Affiliation:
Department of Mathematics, Jadavpur University, Kolkata 700032, West Bengal, India
K. Das*
Affiliation:
Department of Mathematics, Kalyani Government Engineering College, Kalyani, W.B., Pin-741235, India
N. Acharya
Affiliation:
Department of Mathematics, Narula Institute of Technology, Kolkata-700109
*
kd_kgec@rediffmail.com
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Abstract

The unsteady MHD free convection and mass transfer boundary layer flow of an incompressible electrically conducting fluid past an accelerated infinite vertical flat plate embedded in porous medium with ramped wall temperature is considered here. It is assumed that the plate accelerates in its own plane in the presence of thermal radiation incorporating first order chemical reaction. The governing equations are solved analytically using the Laplace transformation technique. The flow phenomenon has been characterized with the help of flow parameters such as permeability parameter, Hartmann number, phenomenon has been characterized with the help of flow parameters such as permeability parameter, Hartmann number, thermal radiation parameter etc. The influences of these parameters on the velocity, temperature field and concentration distribution have been studied and the results are presented graphically and discussed quantitatively. Also, the effects of the various parameters on the skin friction coefficient, the rate of heat and mass transfer at the surface are discussed.

Keywords

Free convectionMHD flowPorous mediumThermal radiationChemical reactionLaplace transforms
Type
Research Article
Information
Journal of Mechanics , Volume 30 , Issue 3 , June 2014 , pp. 277 - 288
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2014 

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