Magnetohydrodynamic flow of nano Williamson fluid generated by stretching plate with multiple slips

Abstract

Purpose

The purpose of this paper is to present an exploration of multiple slips and temperature dependent thermal conductivity effects on the flow of nano Williamson fluid over a slendering stretching plate in the presence of Joule and viscous heating aspects. The effectiveness of nanoparticles is deliberated by considering Brownian moment and thermophoresis slip mechanisms. The effects of magnetism and radiative heat are also deployed.

Design/methodology/approach

The governing partial differential equations are non-dimensionalized and reduced to multi-degree ordinary differential equations via suitable similarity variables. The subsequent non-linear problem treated for numerical results. To measure the amount of increase/decrease in skin friction coefficient, Nusselt number and Sherwood number, the slope of linear regression line through the data points are calculated. Statistical approach is implemented to analyze the heat transfer rate.

Findings

The results show that temperature distribution across the flow decreases with thermal conductivity parameter. The maximum friction factor is ascertained at stronger magnetic field.

Originality/value

In the current paper, the magneto-nano Williamson fluid flow inspired by a stretching sheet of variable thickness is examined numerically. The rationale of the present study is to generalize the studies of Mebarek-Oudina and Makinde (2018) and Williamson (1929).

Citation

Raza, J., Mebarek-Oudina, F. and Mahanthesh, B. (2019), "Magnetohydrodynamic flow of nano Williamson fluid generated by stretching plate with multiple slips", Multidiscipline Modeling in Materials and Structures, Vol. 15 No. 5, pp. 871-894. https://doi.org/10.1108/MMMS-11-2018-0183