A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent
In this work, a laminar steady-state investigation of free convection in a square cavity with differential heated side walls is examined. The cavity is immersed with a viscoplastic liquid the Bingham prototype. The horizontal walls are assumed as adiabatic and the vertical wall has two spatial diffe...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Arabian Journal of Chemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535223007712 |
| _version_ | 1797615919190507520 |
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| author | Brahim Mebarki Keddar Mohammed Mariam Imtiaz Draoui Belkacem Marc Medal Kada Benhanifia Wasim Jamshed Mohamed R. Eid Sayed M. El Din |
| author_facet | Brahim Mebarki Keddar Mohammed Mariam Imtiaz Draoui Belkacem Marc Medal Kada Benhanifia Wasim Jamshed Mohamed R. Eid Sayed M. El Din |
| author_sort | Brahim Mebarki |
| collection | DOAJ |
| description | In this work, a laminar steady-state investigation of free convection in a square cavity with differential heated side walls is examined. The cavity is immersed with a viscoplastic liquid the Bingham prototype. The horizontal walls are assumed as adiabatic and the vertical wall has two spatial differing sinusoidal temperature profiles with diverse phases and amplitudes. The hydro-thermal features are systematically analyzed via a broad choice of Rayleigh numbers Ra (103-106), Bingham numbers Bn, Prandtl numbers Pr (0.1, 1, 10), amplitude ratio ε (0–––1), phase difference ϕ (0-π) and flow index n (0.3–2). The governing equations are treated computationally utilizing a commercial computational simulation code CFD: FLUENT. It has been observed that average Nusselt numbers grow with growing Rayleigh numbers and drop with increasing Bingham quantity Bn, since heat transition occurs primarily due to thermic conductivity. In general, a higher Rayleigh number promotes convection and increases heat transfer efficiency, leading to a higher Nusselt number, whereas a higher Bingham number, indicating a higher degree of viscous or yield-stress behavior, may inhibit convection and decrease heat transfer efficiency, which ended in a lower Nusselt number. These connections frequently appear in heat transport and fluid dynamics simulations. The rise in the phase difference suggests an upsurge in heat transference, as the impact of the phase shift on the Nusselt is perpetually enhanced due to the amount of Rayleigh boosts for all phase differences. Heat transition rate for ϕ=π is boosted because of the values. Moreover, when the amplitude ratio goes up, so does heat transfer. The gap between average Nusselt and Rayleigh amounts rose as the Rayleigh rose. The thermal flow rate is bigger in ε=1 than in the other cases. The rise in phase difference suggests a rise in heat transference, as this effect of phase shift on Nusselt continues to be enhanced due to the amount of Rayleigh boosts for all phase differences. Heat transition rate is enhanced for ϕ=π based on the values. Plus, when the amplitude ratio grows, so does heat transmission. The rate of heat transport for ε=1 is larger than in the other cases. |
| first_indexed | 2024-03-11T07:33:49Z |
| format | Article |
| id | doaj.art-52051823e5e54496a0d8824a96a3daec |
| institution | Directory Open Access Journal |
| issn | 1878-5352 |
| language | English |
| last_indexed | 2024-03-11T07:33:49Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj.art-52051823e5e54496a0d8824a96a3daec2023-11-17T05:25:57ZengElsevierArabian Journal of Chemistry1878-53522023-12-011612105309A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS FluentBrahim Mebarki0Keddar Mohammed1Mariam Imtiaz2Draoui Belkacem3Marc Medal4Kada Benhanifia5Wasim Jamshed6Mohamed R. Eid7Sayed M. El Din8Laboratory of Arid Zones Energetic - (ENERGARID), Faculty of Technology, University of Tahri Mohamed Bechar, BP 417 08000, Bechar, AlgeriaLaboratory of Arid Zones Energetic - (ENERGARID), Faculty of Technology, University of Tahri Mohamed Bechar, BP 417 08000, Bechar, AlgeriaNatural Science & Humanities Department, New Campus University of Engineering and Technology, (UET), Lahore, PakistanLaboratory of Arid Zones Energetic - (ENERGARID), Faculty of Technology, University of Tahri Mohamed Bechar, BP 417 08000, Bechar, AlgeriaAix-Marseille University, Polytech'Marseille, Energy Mechanics Dept IUSTI laboratory, UMR 7343 CNRS-Aix-Marseille University Technopole of Chateau-Gombert, 5 rue Enrico Fermi 13453, MARSEILLE, Cedex 13, FranceLaboratory of Arid Zones Energetic - (ENERGARID), Faculty of Technology, University of Tahri Mohamed Bechar, BP 417 08000, Bechar, AlgeriaDepartment of Mathematics, Capital University of Science and Technology (CUST), Islamabad 44000, PakistanDepartment of Mathematics, Faculty of Science, New Valley University, Al-Kharga, Al-Wadi Al-Gadid 72511, Egypt; Finance and Insurance Department, College of Business Administration, Northern Border University, Arar 1321, Saudi Arabia; Corresponding author.Center of Research, Faculty of Engineering, Future University in Egypt, New Cairo 11835, EgyptIn this work, a laminar steady-state investigation of free convection in a square cavity with differential heated side walls is examined. The cavity is immersed with a viscoplastic liquid the Bingham prototype. The horizontal walls are assumed as adiabatic and the vertical wall has two spatial differing sinusoidal temperature profiles with diverse phases and amplitudes. The hydro-thermal features are systematically analyzed via a broad choice of Rayleigh numbers Ra (103-106), Bingham numbers Bn, Prandtl numbers Pr (0.1, 1, 10), amplitude ratio ε (0–––1), phase difference ϕ (0-π) and flow index n (0.3–2). The governing equations are treated computationally utilizing a commercial computational simulation code CFD: FLUENT. It has been observed that average Nusselt numbers grow with growing Rayleigh numbers and drop with increasing Bingham quantity Bn, since heat transition occurs primarily due to thermic conductivity. In general, a higher Rayleigh number promotes convection and increases heat transfer efficiency, leading to a higher Nusselt number, whereas a higher Bingham number, indicating a higher degree of viscous or yield-stress behavior, may inhibit convection and decrease heat transfer efficiency, which ended in a lower Nusselt number. These connections frequently appear in heat transport and fluid dynamics simulations. The rise in the phase difference suggests an upsurge in heat transference, as the impact of the phase shift on the Nusselt is perpetually enhanced due to the amount of Rayleigh boosts for all phase differences. Heat transition rate for ϕ=π is boosted because of the values. Moreover, when the amplitude ratio goes up, so does heat transfer. The gap between average Nusselt and Rayleigh amounts rose as the Rayleigh rose. The thermal flow rate is bigger in ε=1 than in the other cases. The rise in phase difference suggests a rise in heat transference, as this effect of phase shift on Nusselt continues to be enhanced due to the amount of Rayleigh boosts for all phase differences. Heat transition rate is enhanced for ϕ=π based on the values. Plus, when the amplitude ratio grows, so does heat transmission. The rate of heat transport for ε=1 is larger than in the other cases.http://www.sciencedirect.com/science/article/pii/S1878535223007712Bingham fluidFree convection flowCFDANSYS FluentSquare heated cavity |
| spellingShingle | Brahim Mebarki Keddar Mohammed Mariam Imtiaz Draoui Belkacem Marc Medal Kada Benhanifia Wasim Jamshed Mohamed R. Eid Sayed M. El Din A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent Arabian Journal of Chemistry Bingham fluid Free convection flow CFD ANSYS Fluent Square heated cavity |
| title | A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent |
| title_full | A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent |
| title_fullStr | A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent |
| title_full_unstemmed | A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent |
| title_short | A CFD examination of free convective flow of a non-Newtonian viscoplastic fluid using ANSYS Fluent |
| title_sort | cfd examination of free convective flow of a non newtonian viscoplastic fluid using ansys fluent |
| topic | Bingham fluid Free convection flow CFD ANSYS Fluent Square heated cavity |
| url | http://www.sciencedirect.com/science/article/pii/S1878535223007712 |
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