Convective heat transfer and MHD effects on two dimensional wall jet flow of a nanofluid with passive control model

Abstract

Due to increasing demand of efficient cooling and heating systems in the field of automotive, aerospace and process industries, the heat transfer technology is gaining importance for the desirable solutions. By keeping in view the requirement of the efficient cooling/heating systems we have considered the problem of two dimensional convective laminar wall jet flow of a viscous nanofluid. The effects of thermo-diffusion and Brownian motion have also been considered during the investigation along with the convective boundary condition. Passive control condition is utilized to control the concentration of nanoparticles at the surface. After using similarity solution the obtained system of equations is solved by employing a well-known effective numerical scheme Runge–Kutta–Fehlberg method. The variation in velocity, temperature and concentration profile due to Magnetic forces, Lewis number and Prandtl number is recorded. It has been observed that Lorentz forces are important to control the extra vibrations in the fluid flow. Due to a passive control boundary condition, we have recorded a negligible effect of Brownian motion parameter on the heat transfer rate.