Radiation effects on heat transfer of three dimensional nanofluid flow considering thermal interfacial resistance and micro mixing in suspensions

Abstract

In this study, three dimensional Al2O3-Water nanofluid flow and heat transfer features between two horizontal parallel plates in the presence of magnetic field through porous medium is scrutinized. System under consideration is rotating. Effects of thermal interfacial resistance, nanoparticle volume fraction, Brownian motion, nanoparticle size, types of nanoparticle and base fluid on thermal conductivity are considered. Also micro mixing in suspensions is taken into account while calculating viscosity. Homotopy Analysis method is employed to solve the system of ordinary differential equations, obtained by reducing original system of partial differential equations using suitable change of variables. Effects of different prevailing parameters: Reynolds number, Radiation parameter, Magnetic parameter, nanoparticle volume fraction, Eckert number, Permeability parameter, Rotation parameter and Prandtl number on Heat transfer and fluid flow are discussed. Also it is observed that the skin friction increases with increase in Reynolds number and rotation parameter but trend is reversed for nanoparticle volume fraction. The magnitude of Nusselt number rises with Reynolds number and nanoparticle volume fraction but it declines with increase of rotation parameters and Eckert number.