Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model
Abstract In process engineering as chemical and biotechnological industry, agitated vessels are commonly used for various applications; mechanical agitation and mixing are performed to enhance heat transfer and improve specific Physico-chemical characteristics inside a heated tank. The research subj...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-22415-6 |
| _version_ | 1798028566570467328 |
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| author | Kada Benhanifia Fares Redouane Rahmani Lakhdar Mebarki Brahim Khaled Al-Farhany Wasim Jamshed Mohamed R. Eid Sayed M. El Din Zehba Raizah |
| author_facet | Kada Benhanifia Fares Redouane Rahmani Lakhdar Mebarki Brahim Khaled Al-Farhany Wasim Jamshed Mohamed R. Eid Sayed M. El Din Zehba Raizah |
| author_sort | Kada Benhanifia |
| collection | DOAJ |
| description | Abstract In process engineering as chemical and biotechnological industry, agitated vessels are commonly used for various applications; mechanical agitation and mixing are performed to enhance heat transfer and improve specific Physico-chemical characteristics inside a heated tank. The research subject of this work is a numerical investigation of the thermo-hydrodynamic behavior of viscoplastic fluid (Casson–Papanastasiou model) in a stirred tank, with introducing a new anchor impeller design by conducting some modifications to the standard anchor impeller shape. Four geometry cases have been presented for achieving the mixing process inside the stirred vessel, CAI; classical anchor impeller, AI1; anchor impeller with added horizontal arm blade, AI2 and AI3 anchor impeller with two and three added arm blades, respectively. The investigation is focused on the effect of inertia and plasticity on the thermo-hydrodynamic behavior (flow pattern, power consumption, and heat transfer) by varying the Reynolds number (Re = 1, 10, 100, 200), Bingham number (Bn = 1, 10, 50), in addition to the effect of geometry design in the overall stirred system parameters. The findings revealed an excellent enhancement of flow pattern and heat transfer in the stirred system relatively to the increase of inertia values. Also, an energy reduction has been remarked and the effect of anchor impeller shape. AI3 geometry design significantly improves the flow pattern and enhances heat transfer by an increased rate of 10.46% over the other cases. |
| first_indexed | 2024-04-11T19:11:18Z |
| format | Article |
| id | doaj.art-f05c0fbca3814a07910e0cc90f6d5c11 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T19:11:18Z |
| publishDate | 2022-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-f05c0fbca3814a07910e0cc90f6d5c112022-12-22T04:07:37ZengNature PortfolioScientific Reports2045-23222022-10-0112111910.1038/s41598-022-22415-6Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou modelKada Benhanifia0Fares Redouane1Rahmani Lakhdar2Mebarki Brahim3Khaled Al-Farhany4Wasim Jamshed5Mohamed R. Eid6Sayed M. El Din7Zehba Raizah8Laboratory of Energy in Arid Region (ENERGARID), Faculty of Science and Technology, University of Tahri Mohamed BecharLGIDD, Department of Physics, Faculty of Science and Technology, University of RelizaneLaboratory of Energy in Arid Region (ENERGARID), Faculty of Science and Technology, University of Tahri Mohamed BecharLaboratory of Energy in Arid Region (ENERGARID), Faculty of Science and Technology, University of Tahri Mohamed BecharDepartment of Mechanical Engineering, University of Al-QadisiyahDepartment of Mathematics, Capital University of Science and Technology (CUST)Department of Mathematics, Faculty of Science, New Valley UniversityCenter of Research, Faculty of Engineering, Future University in EgyptDepartment of Mathematics, College of Science, King Khalid UniversityAbstract In process engineering as chemical and biotechnological industry, agitated vessels are commonly used for various applications; mechanical agitation and mixing are performed to enhance heat transfer and improve specific Physico-chemical characteristics inside a heated tank. The research subject of this work is a numerical investigation of the thermo-hydrodynamic behavior of viscoplastic fluid (Casson–Papanastasiou model) in a stirred tank, with introducing a new anchor impeller design by conducting some modifications to the standard anchor impeller shape. Four geometry cases have been presented for achieving the mixing process inside the stirred vessel, CAI; classical anchor impeller, AI1; anchor impeller with added horizontal arm blade, AI2 and AI3 anchor impeller with two and three added arm blades, respectively. The investigation is focused on the effect of inertia and plasticity on the thermo-hydrodynamic behavior (flow pattern, power consumption, and heat transfer) by varying the Reynolds number (Re = 1, 10, 100, 200), Bingham number (Bn = 1, 10, 50), in addition to the effect of geometry design in the overall stirred system parameters. The findings revealed an excellent enhancement of flow pattern and heat transfer in the stirred system relatively to the increase of inertia values. Also, an energy reduction has been remarked and the effect of anchor impeller shape. AI3 geometry design significantly improves the flow pattern and enhances heat transfer by an increased rate of 10.46% over the other cases.https://doi.org/10.1038/s41598-022-22415-6 |
| spellingShingle | Kada Benhanifia Fares Redouane Rahmani Lakhdar Mebarki Brahim Khaled Al-Farhany Wasim Jamshed Mohamed R. Eid Sayed M. El Din Zehba Raizah Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model Scientific Reports |
| title | Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model |
| title_full | Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model |
| title_fullStr | Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model |
| title_full_unstemmed | Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model |
| title_short | Investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using Casson–Papanastasiou model |
| title_sort | investigation of mixing viscoplastic fluid with a modified anchor impeller inside a cylindrical stirred vessel using casson papanastasiou model |
| url | https://doi.org/10.1038/s41598-022-22415-6 |
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