Effect of a chemical reaction on magnetohydrodynamic boundary layer flow of a Maxwell fluid over a stretching sheet with nanoparticles--颗粒学报PARTICUOLOGY

Afify, A. A., & Elgazery, N. S. (2016). Effect of a chemical reaction on magnetohydrodynamic boundary layer flow of a Maxwell fluid over a stretching sheet with nanoparticles. Particuology, 29, 154-161. https://doi.org/10.1016/j.partic.2016.05.003

Effect of a chemical reaction on magnetohydrodynamic boundary layer flow of a Maxwell fluid over a stretching sheet with nanoparticles

Ahmed A. Afify ^a *, Nasser S. Elgazery ^b

a Department of Mathematics, Faculty of Science, Helwan University, Ain Helwan, PO Box 11795, Cairo, Egypt
b Department of Mathematics, Faculty of Education, Ain Shams University, Roxy, Heliopolis, Cairo, Egypt

10.1016/j.partic.2016.05.003

Volume 29, December 2016, Pages 154-161

Received 28 February 2015, Revised 19 April 2016, Accepted 9 May 2016, Available online 1 July 2016, Version of Record 18 November 2016.

E-mail: afify65@yahoo.com; afiefy@qu.edu.sa

Highlights

• MHD boundary layer flow of a Maxwell nanofluid over stretching sheet was numerically investigated.

• Heat and mass transfer rates increased with increasing Biot number and chemical reaction.

• Heat transfer rate decreased with increasing elastic and magnetic parameters.

• Both elastic and magnetic parameters enhanced mass transfer rate and skin friction.

Abstract

The influences of the convective boundary condition and heat generation/absorption on magnetohydrodynamic boundary layer flow of a Maxwell fluid over a stretching surface in the presence of nanoparticles have been numerically investigated. In the model, the physical mechanisms responsible for Brownian motion and thermophoresis with a chemical reaction are considered. Similarity equations are derived and then solved using the shooting method with the fourth-order Runge–Kutta integration scheme. The rates of heat and mass transfer are enhanced with a destructive chemical reaction and Biot number. The opposite influence is found with a generative chemical reaction in the presence of Brownian motion and the thermophoretic property.

Graphical abstract

Keywords

Magnetohydrodynamics; Nanoparticle; Maxwell fluid; Boundary layer flow; Chemical reaction

文章导读