MHD mixed convection in a lid-driven cavity with a bottom trapezoidal body: Two-phase nanofluid model

Muhammad Adil Sadiq, Ammar I. Alsabery, Ishak Hashim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The current work examines the effects of a bottom trapezoidal solid body and a magnetic field on mixed convection in a lid-driven square cavity. The Al2O3-water nanofluid used is assumed to obey Buongiorno’s two-phase model. An isothermal heater is placed on the bottom base of the trapezoid solid body, while the cavity’s vertical walls are kept cold at temperature Tc. The top moving wall and the remaining portions of the cavity’s bottom wall are thermally insulated. The Galerkin weighted residual finite element method is employed to solve the dimensionless governing equations. The parameters of interest are the Richardson number (0.01 ≤ Ri ≤ 100), Hartmann number (0 ≤ Ha ≤ 50), nanoparticle volume fraction (0 ≤ φ ≤ 0.04), and the length of the bottom base of the trapezoidal solid body. The obtained results show that increasing the Richardson number or decreasing the Hartmann number tends to increase the heat transfer rate. In addition, both the thermophoresis and Brownian motion greatly improve the convection heat transfer. It is believed that the current work is a good contribution to many engineering applications such as building design, thermal management of solar energy systems, electronics and heat exchange.

Original languageEnglish
Article number2943
JournalEnergies
Volume11
Issue number11
DOIs
Publication statusPublished - 1 Nov 2018

Fingerprint

Lid-driven Cavity
Nanofluid
Mixed Convection
Mixed convection
Magnetohydrodynamics
Thermophoresis
Heat Transfer
Heat convection
Brownian movement
Thermal Management
Trapezium or trapezoid
Solar energy
Solar Energy
Volume fraction
Electronic equipment
Engineering Application
Volume Fraction
Dimensionless
Galerkin
Model

Keywords

  • Brownian motion
  • Lid-driven cavity
  • Magnetic field
  • Solid trapezoidal body
  • Thermophoresis
  • Two-phase nanofluid model

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

Cite this

MHD mixed convection in a lid-driven cavity with a bottom trapezoidal body : Two-phase nanofluid model. / Sadiq, Muhammad Adil; Alsabery, Ammar I.; Hashim, Ishak.

In: Energies, Vol. 11, No. 11, 2943, 01.11.2018.

Research output: Contribution to journalArticle

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