Professor of School of Engineering, Design and Built Environment, Western Sydney University, Australia. His research interests cover Industry 4.0, Additive Manufacturing, Advanced Engineering Materials and Structures (Metals and Composites), Multi-scale Modelling of Materials and Structures, Metal Forming and Metal Surface Treatment.
2024-04-30
2024-02-24
2024-01-04
Manuscript received August 21, 2023; revised September 11, 2023; accepted October 16, 2023; published January 29, 2024.
Abstract—Heat transfer through mixed convection in obstructed cavities is essential in engineering applications. Magneto-Hydrodynamics (MHD) deals with electrically conductive fluids in a magnetic field. The vented cavities are receiving increasing interest in Convection Heat Transfer (CHT), especially for complex flow patterns and MHD interactions. This study considered a Vented Square Cavity (VSC) and a two-heat-conducting horizontal solid square cylinder. The effect of MHD on mixed convection flow was numerically investigated using FlexPDE software. The study did not focus on specific values of parameters. Instead, it tested a wide range, such as the Hartmann number (Ha) of 10–30, the thermal conductivity solid/fluid ratio of 5–50, the Reynolds number (Re) of 100–500, and the Richardson number (Ri) of 0-10. A wide range of outcomes, including streamlines, isotherms, the average fluid temperature within the enclosure and average Nusselt Numbers (Nu) reflecting heat transfer rates, are exhibited under various parameter settings. It is found that the Ha, Re, and Ri have considerable effects on the flow structure and temperature field. Still, the solid-fluid thermal conductivity ratio has an insignificant impact on the flow field. The results also indicate that the average Nu at the heated wall and the average temperature within the fluid domain are more significant for the considered parameter ranges. Keywords—Computational Fluid Dynamics (CFD), square column heat transfer, mixed convection, magnetohydrodynamics, MHD modeling, vented cavity, solid block conductivity Cite: Zainab K. Radhi, Sana J. Yaseen, Ahmad A. Alsahlani, and Raheem Al-Sabur, "Exploring Magneto-Hydrodynamic Influence on Mixed Convection within a Vented Enclosure Containing a Heat-Conductive Square Column," International Journal of Mechanical Engineering and Robotics Research, Vol. 13, No. 1, pp. 75-84, 2024. Copyright © 2024 by the authors. This is an open access article distributed under the Creative Commons Attribution License (CC BY-NC-ND 4.0), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.
