Heat and mass transfer investigation of MHD Eyring-Powell flow in a stretching channel with chemical reactions

In this paper, we studied the unsteady heat and mass transfer of magneto-hydrodynamics (MHD) Eyring-Powell squeezing flow in a channel by considering, radiation, chemical reaction and heat generation/absorption effects. Similarity solution was utilized to convert the 2-D governing partial differential equations to a set of non-linear ordinary differential equations and then a high accuracy spectral method based on the classical Galerkin approach developed to solve the equations. Comparison of the results with the fourth order Runge-Kutta method shows the accuracy and high agreement of the results for the velocity, temperature and concentration distribution in different locations of the channel. Effects of change in the values of several parameters on the velocity, temperature and concentration profiles were investigated. The results of the computation show that increasing the squeezing number will result in higher temperature and concentration values especially for the lower part of the channel. (C) 2020 Elsevier B.V. All rights reserved.