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The effect of temperature dependent viscosity on MHD natural convection flow from an isothermal sphere

Molla, M.M., Saha, S.C., & Hossain, M.A. (2012) The effect of temperature dependent viscosity on MHD natural convection flow from an isothermal sphere. Journal of Applied Fluid Mechanics, 5(2), pp. 25-31.

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Abstract

Laminar magnetohydrodynamic (MHD) natural convection flow from an isothermal sphere immersed in a fluid with viscosity proportional to linear function of temperature has been studied. The governing boundary layer equations are transformed into a non-dimensional form and the resulting nonlinear system of partial differential equations are reduced to convenient form which are solved numerically by two very efficient methods, namely, (i) Implicit finite difference method together with Keller box scheme and (ii) Direct numerical scheme. Numerical results are presented by velocity and temperature distribution, streamlines and isotherms of the fluid as well as heat transfer characteristics, namely the local skin-friction coefficients and the local heat transfer rate for a wide range of magnetohydrodynamic paramagnet and viscosity-variation parameter.

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ID Code: 44115
Item Type: Journal Article
Additional Information: JAFM is an open access, peer-reviewed online journal
Keywords: Natural convection, MHD, temperature dependent viscosity, finite difference, sphere
ISSN: 1735-3645
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Numerical Modelling and Mechanical Characterisation (091307)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2012 the Authors.
Deposited On: 22 Aug 2011 17:45
Last Modified: 21 Nov 2012 15:24

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