Numerical simulation of MHD nanofluid flow and heat transfer considering viscous dissipation

In this paper nanofluid flow and heat transfer characteristics between two horizontal parallel plates in a rotating system are investigated. The effective thermal conductivity and viscosity of the nanofluid are calculated by KKL (Koo-Kleinstreuer-Li) correlation. In this model the effect of Brownian motion on the effective thermal conductivity is considered. The basic partial differential equations are reduced to ordinary differential equations which are solved numerically using the fourth-order Runge-Kutta method. Comparison between the obtained results and previous works are well in agreement. Results show that the magnitude of the skin friction coefficient is an increasing function of the magnetic parameter, rotation parameter and Reynolds number and it is a decreasing function of the nanoparticle volume fraction. The Nusselt number increases with increase of nanoparticle volume fraction and Reynolds number but it decreases with increase of Eckert number, magnetic and rotation parameters. © 2014 Elsevier Ltd. All rights reserved.