The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers
This article investigates the effect of Rayleigh numbers, Hartmann numbers, and magnetic fields on nanofluid flow behavior and heat transfer. The flow behavior has been analyzed based on the contours and values of the flow function and heat transfer based on the temperature distribution contours and...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X24002259 |
| _version_ | 1797230578501681152 |
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| author | Hassan Roshani Payam Jalili Bahram Jalili Irshad Ahmad Ahmed S. Hendy Mohamed R. Ali D.D. Ganji |
| author_facet | Hassan Roshani Payam Jalili Bahram Jalili Irshad Ahmad Ahmed S. Hendy Mohamed R. Ali D.D. Ganji |
| author_sort | Hassan Roshani |
| collection | DOAJ |
| description | This article investigates the effect of Rayleigh numbers, Hartmann numbers, and magnetic fields on nanofluid flow behavior and heat transfer. The flow behavior has been analyzed based on the contours and values of the flow function and heat transfer based on the temperature distribution contours and local and average Nusselt number values. Since the effects of the magnetic field are an important parameter in many technical and engineering applications such as cooling of nuclear reactors, extraction of geothermal energy, and induction casting of metals, in this study, its effect on aluminum oxide nanoparticle, Al2O3, and water, H2O, has been analyzed. The governing equations of nanofluid flow, continuity, momentum, and energy equations have been solved using the Galerkin finite element method and coded and simulated using FlexPDE software. The results obtained for both octagonal cavities containing horizontal and vertical Cassini oval barriers with specific boundary conditions show that with the Rayleigh number and nanoparticle volume fraction being constant, the value of the maximum stream function decreases with the increase of the Hartmann number, and when the Hartmann number and nanoparticle volume fraction is constant, with increasing Rayleigh number, its value increases significantly. |
| first_indexed | 2024-04-24T15:30:43Z |
| format | Article |
| id | doaj.art-4e8e167c5ff047c5b1d4470654ef9051 |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-04-24T15:30:43Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-4e8e167c5ff047c5b1d4470654ef90512024-04-02T04:14:57ZengElsevierCase Studies in Thermal Engineering2214-157X2024-04-0156104194The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriersHassan Roshani0Payam Jalili1Bahram Jalili2Irshad Ahmad3Ahmed S. Hendy4Mohamed R. Ali5D.D. Ganji6Department of Mechanical Engineering, North Tehran Branch, Islamic Azad University, Tehran, IranDepartment of Mechanical Engineering, North Tehran Branch, Islamic Azad University, Tehran, IranDepartment of Mechanical Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran; Corresponding author.Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi ArabiaDepartment of Computational Mathematics and Computer Science, Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., Yekaterinburg, 620002, RussiaFaculty of Engineering and Technology, Future University in Egypt, New Cairo, 11835, Egypt; Corresponding author.Department of Mechanical Engineering, Babol Noshirvani University of Technology, P.O. Box 484, Babol, IranThis article investigates the effect of Rayleigh numbers, Hartmann numbers, and magnetic fields on nanofluid flow behavior and heat transfer. The flow behavior has been analyzed based on the contours and values of the flow function and heat transfer based on the temperature distribution contours and local and average Nusselt number values. Since the effects of the magnetic field are an important parameter in many technical and engineering applications such as cooling of nuclear reactors, extraction of geothermal energy, and induction casting of metals, in this study, its effect on aluminum oxide nanoparticle, Al2O3, and water, H2O, has been analyzed. The governing equations of nanofluid flow, continuity, momentum, and energy equations have been solved using the Galerkin finite element method and coded and simulated using FlexPDE software. The results obtained for both octagonal cavities containing horizontal and vertical Cassini oval barriers with specific boundary conditions show that with the Rayleigh number and nanoparticle volume fraction being constant, the value of the maximum stream function decreases with the increase of the Hartmann number, and when the Hartmann number and nanoparticle volume fraction is constant, with increasing Rayleigh number, its value increases significantly.http://www.sciencedirect.com/science/article/pii/S2214157X24002259Natural convectionNanofluidPorous mediaOctagonal cavityCassini oval barrier |
| spellingShingle | Hassan Roshani Payam Jalili Bahram Jalili Irshad Ahmad Ahmed S. Hendy Mohamed R. Ali D.D. Ganji The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers Case Studies in Thermal Engineering Natural convection Nanofluid Porous media Octagonal cavity Cassini oval barrier |
| title | The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers |
| title_full | The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers |
| title_fullStr | The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers |
| title_full_unstemmed | The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers |
| title_short | The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers |
| title_sort | effect of magnetic field on the heat transfer in the porous medium octagonal cavity with cassini oval barriers |
| topic | Natural convection Nanofluid Porous media Octagonal cavity Cassini oval barrier |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X24002259 |
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