Unsteady mixed convection stagnation-point flow over a plate moving along the direction of flow impingement
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 3 January 2017
Abstract
Purpose
The purpose of this paper is to present the results of an analysis performed to study unsteady mixed convection at the stagnation point flow over a plate moving along the direction of flow impingement. The similarity transformations are used to transform the governing nonlinear partial differential equation to a system of an ordinary differential equation.
Design/methodology/approach
The transformed equations are then solved numerically by a shooting technique together with bvp4c function.
Findings
The numerical results are compared with the corresponding results from previous researchers. The effects of the unsteadiness Parameter A, Prandtl number Pr, mixed convection parameter λ for plane (m = 0) and axisymmetric (m = 1) flow on the shear stress or the skin friction and heat transfer coefficients, as well as the velocity and temperature profiles, are presented and discussed.
Originality/value
Dual solutions for the opposing flow and multiple solutions for the assisting flow are found.
Keywords
Acknowledgements
The authors gratefully acknowledge the financial supports received in the form of research grants funding from the Universiti Putra Malaysia and Universiti Kebangsaan Malaysia. The authors also wish to express their sincere thanks to the very competent reviewers for the good comments and suggestions.
Citation
Muhad Saleh, S.H., Md. Arifin, N., Nazar, R. and Pop, I. (2017), "Unsteady mixed convection stagnation-point flow over a plate moving along the direction of flow impingement", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 27 No. 1, pp. 120-141. https://doi.org/10.1108/HFF-09-2015-0357
Publisher
:Emerald Publishing Limited
Copyright © 2017, Emerald Publishing Limited