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Impact of nonlinear radiative nanoparticles on an unsteady flow of a Williamson fluid toward a permeable convectively heated shrinking sheet

Aurang Zaib (Department of Mathematical Sciences, Federal Urdu University of Arts Sciences and Technology, Karachi, Pakistan)
Rizwan Ul Haq (Department of Electrical Engineering, Bahria University Islamabad, Islamabad, Pakistan)
A.J. Chamkha (Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al-Khobar, Saudi Arabia and RAK Research and Innovation Center, American University of Ras Al Khaimah, Ras al-Khaimah, United Arab Emirates)
M.M. Rashidi (Department of Civil Engineering, School of Engineering, University of Birmingham, Birmingham, UK)

World Journal of Engineering

ISSN: 1708-5284

Article publication date: 3 December 2018

61

Abstract

Purpose

The study aims to numerically examine the impact of nanoparticles on an unsteady flow of a Williamson fluid past a permeable convectively heated shrinking sheet.

Design/methodology/approach

In sort of the solution of the governing differential equations, suitable transformation variables are used to get the system of ODEs. The converted equations are then numerically solved via the shooting technique.

Findings

The impacts of such parameters on the velocity profile, temperature distribution and the concentration of nanoparticles are examined through graphs and tables. The results point out that multiple solutions are achieved for certain values of the suction parameter and for decelerating flow, while for accelerating flow, the solution is unique. Further, the non-Newtonian parameter reduces the fluid velocity and boosts the temperature distribution and concentration of nanoparticles in the first solution, while the reverse drift is noticed in the second solution.

Practical implications

The current results may be used in many applications such as biomedicine, industrial, electronics and solar energy.

Originality/value

The authors think that the current results are new and significant, which are used in many applications such as biomedicine, industrial, electronics and solar energy. The results have not been considered elsewhere.

Keywords

Citation

Zaib, A., Haq, R.U., Chamkha, A.J. and Rashidi, M.M. (2018), "Impact of nonlinear radiative nanoparticles on an unsteady flow of a Williamson fluid toward a permeable convectively heated shrinking sheet", World Journal of Engineering, Vol. 15 No. 6, pp. 731-742. https://doi.org/10.1108/WJE-02-2018-0050

Publisher

:

Emerald Publishing Limited

Copyright © 2018, Emerald Publishing Limited

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