Ahmed, Sameh E. and Abderrahmane, Aissa and Alizadeh, As'ad and Opulencia, Maria Jade Catalan and Younis, Obai and Homod, Raad Z. and Guedri, Kamel and Zekri, Hussein and Toghraie, Davood (2023) Magnetohydrodynamic Convection-Entropy Generation of a Non Newtonian Nanofluid in a 3D Chamber Filled With a Porous Medium. Journal of Magnetism and Magnetic Materials, 586: 171175. ISSN 03048853
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Abstract
Magnetohydrodynamic (MHD) mixed convection in a 3D (three dimensional) lid-driven cavity loaded with a power-law nanofluid is examined. The bottom wavy wall is maintained at a hot temperature, while the upper lid is at a uniformly cold temperature. The vertical walls are kept in adiabatic conditions. The steady and three-dimensional flow of nanofluids is quantitatively studied utilizing thermophysical properties and the Galerkin Finite Element Method (GFEM). The findings were shown for a variety of Grashof numbers (Gr = 103-105), Hartmann numbers (Ha = 0–20), Reynolds numbers (Re = 10–500), power-law indexes (n = 0.8,1,1.6), and undulation numbers (N = 1–4). The influence of the various parameters on flow, heat transfer, and entropy generation is illustrated by the streamlines, isotherms, and isentropic contours. Higher Re, , N, , and lower Ha enhance the heat transfer. Entropy generation is mostly due to heat transfer but also fluid-friction and magneto effects contribute. Also, the increase in Re from 50 to 500 gives an enhancement in up to 87.5 %. Furthermore, the increase in power-law index (n) from 0.8 to 1 gives a reduction in Nusselt number up to 10.58 %.
Item Type: | Article |
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Uncontrolled Keywords: | Magnetohydrodynamics (MHD), Non-Newtonian fluids, Nanofluids Natural convection, Entropy generation |
Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering |
Divisions: | Department of Civil Engineering > Research papers |
Depositing User: | ePrints Depositor |
Date Deposited: | 31 Oct 2024 12:58 |
Last Modified: | 31 Oct 2024 12:58 |
URI: | https://eprints.cihanuniversity.edu.iq/id/eprint/2384 |