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Unsteady Flow and Heat Transfer of a MHD Micropolar Fluid Over a Porous Stretching Sheet in the Presence of Thermal Radiation

Published online by Cambridge University Press:  09 May 2013

G. C. Shit ,
R. Haldar  and
A. Sinha
G. C. Shit*
Affiliation:
Department of Mathematics, Jadavpur University, Kolkata, India
R. Haldar
Affiliation:
Department of Mathematics, Jadavpur University, Kolkata, India
A. Sinha
Affiliation:
Department of Mathematics, Jadavpur University, Kolkata, India
*
*Corresponding author (gcs@math.jdvu.ac.in)
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Abstract

A non-linear analysis has been made to study the unsteady hydromagnetic boundary layer flow and heat transfer of a micropolar fluid over a stretching sheet embedded in a porous medium. The effects of thermal radiation in the boundary layer flow over a stretching sheet have also been investigated. The system of governing partial differential equations in the boundary layer have reduced to a system of non-linear ordinary differential equations using a suitable similarity transformation. The resulting non-linear coupled ordinary differential equations are solved numerically by using an implicit finite difference scheme. The numerical results concern with the axial velocity, micro-rotation component and temperature profiles as well as local skin-friction coefficient and the rate of heat transfer at the sheet. The study reveals that the unsteady parameter S has an increasing effect on the flow and heat transfer characteristics.

Keywords

Thermal radiationMicro-polar fluidMHDHeat transferPorous medium
Type
Articles
Information
Journal of Mechanics , Volume 29 , Issue 3 , September 2013 , pp. 559 - 568
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2013 

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