Effect of the Heating Block Position on Natural Convection in a Three-Dimensional Cavity Filled with Nanofluids

Authors

1 National School of Applied Sciences, Ibn Zohr University, Agadir, BP 1136, Morocco

2 National School of Applied Sciences, Ibn Zohr University, laboratory of mechanics, energy and envirNational School of Applied Sciences, Ibn Zohr University, Agadir, BP 1136, Morocco

Abstract

This paper consists on a three-dimensional numerical approach of natural convection in a cavity containing the nanofluid. The cavity contains an isothermal heating block in the middle of the bottom (case BH) and the top (case TH) walls and kept at a hot temperature TH. The right and the left vertical walls of the cavity are kept at a cold temperature Tc. The study's parameters are: the volume fraction Ф varying between 0 and 0.03, and the Rayleigh number . The considered nanofluid is water + Cu. The results illustrate that the Rayleigh number Ra and the volume fraction Ф have a positive effect and they also improve the heat transfer. Interesting results have also been found while comparing the two considered configurations.

Keywords

Journal of Applied Fluid Mechanics
Volume 12, Issue 1
January 2019
Pages 281-291

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