Analytical Study of Convective Heat and Mass Transfer in MHD Nanofluid Flow Over a Stretching Sheet with Thermal and Concentration Effects
Chukwuemeka Paul Amadi *
Department of Mathematics, Rivers State University, Port Harcourt, Nigeria.
Emeka Amos
Department of Mathematics, Rivers State University, Port Harcourt, Nigeria.
Davies Iyai
Department of Mathematics, Rivers State University, Port Harcourt, Nigeria.
*Author to whom correspondence should be addressed.
Abstract
The study of convective heat and mass transfer in nanofluid flow over a stretching sheet, particularly under the combined influence of thermal and concentration gradients presents meaningful structures in the field of nanofluid dynamics. This research focuses on two-dimensional magnetohydrodynamics boundary layer flow of a nanofluid over a stretching sheet in the presence of concentration-based internal heat, chemical reaction, Brownian motion and thermophoresis. The governing partial differential equation were transformed to dimensionless form using nondimensional variables and the resulting equations were solved using homotopy perturbation method. The effect of various physical parameters on velocity, temperature and nanoparticles concentration are discussed with the aid of graphs. It is observed that the increase in the Brownian motion parameter and concentration based internal heat increases the temperature distribution throughout the boundary layer. Increasing the chemical reaction significantly decreases the concentration level while increase in the magnetic field significantly reduces the fluid velocity. The results are compared with the existing literatures on various special cases to check the accuracy of the present study and are found to be in excellent agreement.
Keywords: MHD, convective, heat and mass transfer, nanofluid, stretching sheet, thermal and concentration gradients