RESEARCH ARTICLE

Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over a shrinking sheet with suction/injection

  • Krishnendu Bhattacharyya
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  • Department of Mathematics, The University of Burdwan, Burdwan-713104, West Bengal, India

Received date: 22 Feb 2011

Accepted date: 25 May 2011

Published date: 05 Sep 2011

Copyright

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg

Abstract

In this paper, an investigation is made to study the effects of radiation and heat source/sink on the unsteady boundary layer flow and heat transfer past a shrinking sheet with suction/injection. The flow is permeated by an externally applied magnetic field normal to the plane of flow. The self-similar equations corresponding to the velocity and temperature fields are obtained, and then solved numerically by finite difference method using quasilinearization technique. The study reveals that the momentum boundary layer thickness increases with increasing unsteadiness and decreases with magnetic field. The thermal boundary layer thickness decreases with Prandtl number, radiation parameter and heat sink parameter, but it increases with heat source parameter. Moreover, increasing unsteadiness, magnetic field strength, radiation and heat sink strength boost the heat transfer.

Cite this article

Krishnendu Bhattacharyya . Effects of radiation and heat source/sink on unsteady MHD boundary layer flow and heat transfer over a shrinking sheet with suction/injection[J]. Frontiers of Chemical Science and Engineering, 2011 , 5(3) : 376 -384 . DOI: 10.1007/s11705-011-1121-0

Acknowledgments

The author would like to thank the referee for his useful suggestion to improve the paper. The author also gratefully acknowledges the financial support of National Board for Higher Mathematics (NBHM), DAE, Mumbai, India for pursuing this work.
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