Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field
This study investigated the flow characteristics, entropy generation, and thermal transfer of convection in a vertical and horizontal three-dimensional square duct filled with ferrofluid. The influence of periodic transverse and partial magnetic fields (MFs) along the walls of a duct having a consta...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Case Studies in Thermal Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25000486 |
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| author | Kamel Zitouni Messaouda Boumaaza Lakhdar Aidaoui Yahia Lasbet Houssam Eddin Abdellatif Shan Ali Khan Yazid Chetbani Ahmed Belaadi Ibrahim M.H. Alshaikh Djamel Ghernaout |
| author_facet | Kamel Zitouni Messaouda Boumaaza Lakhdar Aidaoui Yahia Lasbet Houssam Eddin Abdellatif Shan Ali Khan Yazid Chetbani Ahmed Belaadi Ibrahim M.H. Alshaikh Djamel Ghernaout |
| author_sort | Kamel Zitouni |
| collection | DOAJ |
| description | This study investigated the flow characteristics, entropy generation, and thermal transfer of convection in a vertical and horizontal three-dimensional square duct filled with ferrofluid. The influence of periodic transverse and partial magnetic fields (MFs) along the walls of a duct having a constant flux density on the flow pattern is explored. The analysis is carried out by examining various geometric and physical parameters, i.e., the Grashof number (Gr) (40 ≤ Gr ≤ 4 × 105), the Hartmann number (Ha) ranged from 0 to 50, Reynolds number (Re = 200) and volume fraction of Fe3O4 nanoparticles (Ø = 0.02). The effect of the various factors in the problem on heat transfer presented by Nusselt number (Nu) and the friction coefficient along the entropy generation have been discussed graphically. Findings show that when the magnetic force is applied transversely (γ = π/2, γ = π/4) under both full and partial circumstances, the total entropy generation decreases with rising Ri and Ha. On the other hand, when it is applied longitudinally (γ = 0), it grows. The opposite tendency is noted for the Nusselt number and therefore the heat exchange. Using the horizontal position leads to accelerated heat transfer, while entropy production is reduced. |
| format | Article |
| id | doaj-art-85433734604a469c9ff08c05a8c24f27 |
| institution | Kabale University |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-85433734604a469c9ff08c05a8c24f272025-02-02T05:27:28ZengElsevierCase Studies in Thermal Engineering2214-157X2025-02-0166105788Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic fieldKamel Zitouni0Messaouda Boumaaza1Lakhdar Aidaoui2Yahia Lasbet3Houssam Eddin Abdellatif4Shan Ali Khan5Yazid Chetbani6Ahmed Belaadi7Ibrahim M.H. Alshaikh8Djamel Ghernaout9Laboratory of Mechanics and Materials Development, Department of Mechanical Engineering, Faculty of Science and Technology, University of Djelfa, P.O. Box 3117, Djelfa, 17000, AlgeriaLaboratory of Civil Engineering and Hydraulics (LGCH), University 8 May 1945 Guelma, PO Box 401, Guelma, 24000, AlgeriaLaboratory of Mechanics and Materials Development, Department of Mechanical Engineering, Faculty of Science and Technology, University of Djelfa, P.O. Box 3117, Djelfa, 17000, AlgeriaLaboratory of Mechanics and Materials Development, Department of Mechanical Engineering, Faculty of Science and Technology, University of Djelfa, P.O. Box 3117, Djelfa, 17000, AlgeriaDépartement de Génie Mécanique, Faculté de Technologie, Université 20 Août 1955-Skikda, AlgeriaSchool of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaLaboratory of Mechanics and Materials Development, Department of Mechanical Engineering, Faculty of Science and Technology, University of Djelfa, P.O. Box 3117, Djelfa, 17000, AlgeriaDépartement de Génie Mécanique, Faculté de Technologie, Université 20 Août 1955-Skikda, Algeria; Corresponding author.Department of Civil Engineering, University of Science and Technology, Faculty of Engineering, Sana'a, Yemen; Corresponding author.Chemical Engineering Department, College of Engineering, University of Ha'il, PO Box 2440, Ha'il, 81441, Saudi Arabia; Chemical Engineering Department, Faculty of Engineering, University of Blida, PO Box 270, Blida, 09000, AlgeriaThis study investigated the flow characteristics, entropy generation, and thermal transfer of convection in a vertical and horizontal three-dimensional square duct filled with ferrofluid. The influence of periodic transverse and partial magnetic fields (MFs) along the walls of a duct having a constant flux density on the flow pattern is explored. The analysis is carried out by examining various geometric and physical parameters, i.e., the Grashof number (Gr) (40 ≤ Gr ≤ 4 × 105), the Hartmann number (Ha) ranged from 0 to 50, Reynolds number (Re = 200) and volume fraction of Fe3O4 nanoparticles (Ø = 0.02). The effect of the various factors in the problem on heat transfer presented by Nusselt number (Nu) and the friction coefficient along the entropy generation have been discussed graphically. Findings show that when the magnetic force is applied transversely (γ = π/2, γ = π/4) under both full and partial circumstances, the total entropy generation decreases with rising Ri and Ha. On the other hand, when it is applied longitudinally (γ = 0), it grows. The opposite tendency is noted for the Nusselt number and therefore the heat exchange. Using the horizontal position leads to accelerated heat transfer, while entropy production is reduced.http://www.sciencedirect.com/science/article/pii/S2214157X25000486Heat transferEntropy generationMHDFerrofluidMixed convection |
| spellingShingle | Kamel Zitouni Messaouda Boumaaza Lakhdar Aidaoui Yahia Lasbet Houssam Eddin Abdellatif Shan Ali Khan Yazid Chetbani Ahmed Belaadi Ibrahim M.H. Alshaikh Djamel Ghernaout Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field Case Studies in Thermal Engineering Heat transfer Entropy generation MHD Ferrofluid Mixed convection |
| title | Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field |
| title_full | Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field |
| title_fullStr | Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field |
| title_full_unstemmed | Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field |
| title_short | Numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non-uniform magnetic field |
| title_sort | numerical assessment of heat transfer and entropy generation of a mixed convection ferrofluid flow under the effect of a non uniform magnetic field |
| topic | Heat transfer Entropy generation MHD Ferrofluid Mixed convection |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25000486 |
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