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Analytic and numeric solutions for stagnation-point flow with melting, thermal-diffusion and diffusion-thermo effects

M. Awais (Department of Mathematics, COMSATS Institute of Information Technology, Attock, Pakistan)
T. Hayat (Department of Mathematics, Quaid-i-Azam University, Islamabad, Pakistan and Department of Mathematics, King Abdulaziz University, Jeddah, Saudi Arabia)
M. Mustafa (Research Centre for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan)
K. Bhattacharyya (Department of Mathematics, The University of Burdwan, Burdwan, India)
M. Asif Farooq (Centre for Advance Mathematics and Physics, National University of Sciences and Technology (NUST), Islamabad, Pakistan)

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Article publication date: 25 February 2014

166

Abstract

Purpose

The aim of this work is to analyze the combined effects of melting, thermal-diffusion and diffusion-thermo on the flow of non-Newtonian fluid.

Design/methodology/approach

An efficient approach namely homotopy analysis method is applied to compute the solution of the non-linear problem. Moreover, numerical results using MATLAB function bvp4c are also computed.

Findings

Main findings are an increase in the melting process corresponding to increase in the velocity and the boundary layer thickness. However, surface heat and mass transfer decrease by increasing the values of melting parameter M.

Originality/value

Combined effects of thermal-diffusion and diffusion-thermo are analyzed and the solutions are computed both numerically and analytically. Some deduced results can be obtained in a limiting sense.

Keywords

Acknowledgements

The authors are grateful to the reviewers for their useful suggestions. Financial support of Higher Education Commission (HEC) of Pakistan is gratefully acknowledged.

Citation

Awais, M., Hayat, T., Mustafa, M., Bhattacharyya, K. and Asif Farooq, M. (2014), "Analytic and numeric solutions for stagnation-point flow with melting, thermal-diffusion and diffusion-thermo effects", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 24 No. 2, pp. 438-454. https://doi.org/10.1108/HFF-10-2011-0220

Publisher

:

Emerald Group Publishing Limited

Copyright © 2014, Emerald Group Publishing Limited

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