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


Autoria(s): Molla, Md. Mamun; Saha, Suvash C.; Khan, M.A.I.
Data(s)

2012

Resumo

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.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/48389/

Publicador

Emerald Publishing

Relação

http://eprints.qut.edu.au/48389/1/Manuscript_saha1_corrected.pdf

http://www.emeraldinsight.com/journals.htm?issn=0264-4401&volume=29&issue=8&articleid=17063352&show=abstract

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.

Direitos

Copyright 2012 Emerald Group Publishing

Fonte

Faculty of Science and Technology; School of Engineering Systems

Palavras-Chave #010300 NUMERICAL AND COMPUTATIONAL MATHEMATICS #091307 Numerical Modelling and Mechanical Characterisation #Natural convection #MHD flow #Temperature dependent viscosity #Horizontal circular cylinder
Tipo

Journal Article