MHD Natural Convection Flow of Hybrid Nano Fluid in a Square Cavity with a Corrugated Conducting Block

Document Type : Original Article


Department of Mechanical Engineering, South Branch, Islamic Azad University, Tehran, IRAN


Purpose – The purpose of this thesis is to study the influence of magnetic field on MHD natural convection flow of hybrid nanofluid in a square cavity with a corrugated conducting block. Also, the effect of fluid–solid thermal conductivity ratio is investigated.
Design, methodology, and approach — The finite volume method is used to discretize the governing equations that are expressed in the dimensionless form. The SIMPLE method ensures the connection of velocity and pressure. The convergence is confirmed using a heat transfer balance. The quantitative and qualitative data were compared with those from other published studies in order to validate the numerical results.
Findings - Based on heat transfer, fluid friction, and magnetic force, the results show that the magnetic field and the conductivity ratio of the wavy solid block can considerably affect the dynamic and thermal field, and, as a result, the rate of heat transfer and entropy generation.
Originality and worth - To the best of the authors' knowledge, this numerical analysis represents the first effort to use hybrid nanofluid for examining the creation of entropy due to magnetohydrodynamic natural convective flow in a square cavity with the presence of a wavelike circular conductive cylinder. The irreversibilities caused by the magnetic effect are considered. Consideration is given to the fluid-solid thermal conductivity ratio.


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  • Receive Date: 01 February 2023
  • Revise Date: 11 February 2023
  • Accept Date: 15 February 2023