Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip

Abstract

Purpose

This paper aims to address the magnetohydrodynamic boundary layer flow of hybrid mixture across a stretching surface under the influence of electric field.

Design/methodology/approach

The local similarity transformations are implemented to reformulate the governing partial differential equations into coupled non-linear ordinary differential equations of higher order. The numerical solutions are obtained for the simplified governing equations with the aid of finite difference technique.

Findings

The velocity, temperature and entropy generation are examined thoroughly for the effects of different budding parameters related to present analysis by means of graphs. It is obtained that owing to the effect of magnetic field along with slip factor, the fluid motion slowdown. However, the flow velocity enhances for the rising estimations of an electric field which tends to resolve sticky effects.

Originality/value

The three-dimensional plots are drawn to understand the nature of physical quantities. To ensure the precision, the obtained solutions are compared with the existing one for certain specific conditions. A good concurrence is observed between the proposed results and previously recorded outcomes.

Citation

M., V.S.R., Gireesha, B.J., Gangadhar, K., P., M.S. and Sindhu, S. (2021), "Entropy generation analysis of electrical magnetohydrodynamic flow of TiO₂-Cu/H₂O hybrid nanofluid with partial slip", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 31 No. 6, pp. 1905-1929. https://doi.org/10.1108/HFF-07-2020-0477