NUMERICAL SIMULATION OF MHD NANOFLUID FORCED CONVECTION HEAT TRANSFER IN A RECTANGULAR ENCLOSURE WITH VARIABLE PARAMETERSTERS

Authors

  • Ehsan Kianpour Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran
  • Seyyed Muhammad Hossein Razavi Dehkordi Department of Mechanical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran; Aerospace and Energy Conversion Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
  • Nor Azwadi Che Sidik Department of Thermo-fluid, Faculty of Mechanical Engineering, University Technology of Malaysia, Skudai, Johor, Malaysia

Keywords:

Cooling, Nanofluid, Numerical simulation, Forced convection, Magnetic field

Abstract

This numerical research examines the cooling of a hot obstacle within a rectangular cavity containing water-copper oxide nanofluid. This cavity has an inlet and outlet, and the cold nanofluid comes from the left side of the cavity and goes out from the opposite side, after cooling the hot obstacle. All walls of the cavity are insulated and the SIMPLER algorithm is employed for solving the governing equations. The effect of different parameters such as nanoparticle volume fraction, Reynolds number, and Hartmann number is investigated. The results show that with an increase in the Reynolds number, the isothermal lines become more compact and the dimensions of the cold zone near the inlet increase. This phenomenon causes the isothermal lines to be closer to the hot barrier and the temperature gradient, and as a result the heat transfer of the hot barrier increases.

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Published

2024-10-03

Issue

Vol. 3 No. 2 (2024)

Section

Articles