Soret-Dufour effects on MHD rotating flow of a viscoelastic fluid
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 25 February 2014
Abstract
Purpose
The purpose of this paper is to study the heat and mass transfer with Soret-Dufour effects for the magnetohydrodynamic three-dimensional flow of second grade fluid in the rotating frame of reference.
Design/methodology/approach
Series solution is obtained by homotopy analysis method.
Findings
Increase in Soret number, Schmidt number and Dufour number, the heat transfer increases and mass transfer decreases. Effects of Prandtl and Eckert numbers are qualitatively similar as they assist the temperature profile and reduce the concentration of species. Increase in the length of the channel versus height increases the temperature profile but decreases the concentration field. Increase in the second grade fluid parameter causes reduction in both the temperature and concentration fields. The heat flux values at the lower plate are smaller than the values at the upper plate, whereas the situation is opposite in the case of mass transfer.
Originality/value
These findings will be useful for the fluid flow in porous channel.
Keywords
Acknowledgements
The research of Dr Alsaedi was partially supported by Deanship of Scientific Research (DSR) King Abdulaziz University, Jeddah, Saudi Arabia. The first two authors thank the financial support of this work through Higher Education Commission of Pakistan. The authors are also grateful to the reviewers for their suggestions regarding an earlier version of this paper.
Citation
Hayat, T., Naz, R., Asghar, S. and Alsaedi, A. (2014), "Soret-Dufour effects on MHD rotating flow of a viscoelastic fluid", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 24 No. 2, pp. 498-520. https://doi.org/10.1108/HFF-03-2012-0076
Publisher
:Emerald Group Publishing Limited
Copyright © 2014, Emerald Group Publishing Limited