Effects of Mixed Convection on Methanol and Kerosene Oil Based Micropolar Nanofluid Containing Oxide Nanoparticles

Hamzeh  T. Alkasasbeh; Mohammed  Z. Swalmeh; Abid  Hussanan; Mustafa  Mamat

Authors

Hamzeh T. Alkasasbeh Department of Mathematics, Faculty of Science, Ajloun National University, P.O. Box 43, Ajloun 26810, Jordan
Mohammed Z. Swalmeh Faculty of Arts and Sciences, Aqaba University of Technology, Aqaba, Jordan
Abid Hussanan Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
Mustafa Mamat Faculty of Informatics and Computing, Universiti Sultan Zainal Abidin (Kampus Gong Badak), 21300 Kuala Terengganu, Terengganu, Malaysia

Keywords:

mixed convection, heat transfer, micropolar nanofluid, solid sphere

Abstract

The purpose of this communication is to examine the micro-rotation and micro-inertia characteristics of nanofluids over a solid sphere under mixed convection effect. Two types of oxide nanoparticles namely graphene and iron oxide suspended in two different types of base fluids such as methanol and kerosene oil. The governing boundary layer equations are transformed into nonlinear partial differential equations system and solved numerically using an implicit finite difference scheme known as Keller box method. The results for temperature, velocity and angular velocity are discussed and plotted for different values of the parameters, namely, nanoparticle volume fraction, the micro-rotation parameter and the mixed convection parameter by considering the thermo-physical properties of both nanoparticles and base fluids. Moreover, numerical results for the local Nusselt number and the local skin friction coefficient are obtained. It is found that Fe3O4/GO kerosene oil has higher in local Nusselt number compared with Fe3O4/GO methanol. The results of the local Nusselt number and the local skin friction for the Newtonian fluid are found to be in good accurate with the literature.