Frontiers of Chemical Science and Engineering

, Volume 5, Issue 3, pp 376–384

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

Authors

    • Department of MathematicsThe University of Burdwan
Research Article

DOI: 10.1007/s11705-011-1121-0

Cite this article as:
Bhattacharyya, K. Front. Chem. Sci. Eng. (2011) 5: 376. doi:10.1007/s11705-011-1121-0

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.

Keywords

MHD boundary layerunsteady flowheat transferthermal radiationheat source/sinkshrinking sheetsuction/injection

Copyright information

© Higher Education Press and Springer-Verlag Berlin Heidelberg 2011