Cooling enhancement by nanofluid mixed convection inside a horizontal vented cavity submitted to sinusoidal heating

摘要

Purpose The purpose of this paper is to investigate numerically mixed convection of Al2O3-water nanofluids flowing through a horizontal ventilated cavity heated from below by a temperature varying sinusoidally along its lower wall. The simulations focus on the effects of different key parameters, such as Reynolds number (200 Re 5,000), nanoparticles' concentration (0 0.1) and phase shift of the heating temperature (0 ), on flow and thermal patterns and heat transfer performances.