MHD natural convection flow from an isothermal horizontal circular cylinder under consideration of temperature dependent viscosity

Molla, Md. Mamun, Saha, Suvash C., & Khan, M.A.I. (2012) MHD natural convection flow from an isothermal horizontal circular cylinder under consideration of temperature dependent viscosity. Engineering Computations, 29(8), pp. 875-887.

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Magnetohydrodynamic (MHD) natural convection laminar flow from an iso-thermal horizontal circular cylinder immersed in a fluid with viscosity proportional to a linear function of temperature will be discussed with numerical simulations.

The governing boundary layer equations are transformed into a non-dimensional form and the resulting nonlinear system of partial differential equa-tions 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 distributions of the fluid as well as heat transfer characteristics, namely the shearing stress and the local heat transfer rate in terms of the local skin-friction coefficient and the local Nusselt number for a wide range of magnetohydrodynamic parameter, viscosity-variation parameter and viscous dissipation parameter.

MHD flow in this geometry with temperature dependent viscosity is absent in the literature. The results obtained from the numerical simulations have been veri-fied by two methodologies.

Impact and interest:

3 citations in Scopus
2 citations in Web of Science®
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ID Code: 48389
Item Type: Journal Article
Refereed: Yes
Additional Information: DOI: 10.1108/02644401211271636
Keywords: Natural convection, MHD flow, Temperature dependent viscosity, Horizontal circular cylinder
ISSN: 0264-4401
Subjects: Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300)
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 Science and Technology
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2012 Emerald Group Publishing
Deposited On: 01 Feb 2012 00:33
Last Modified: 21 Mar 2013 10:45

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