Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods
With the development of hydraulic structures, rivers are becoming fragmented, and their connectivity is greatly affected. Important migratory routes through which fish complete their life processes are hindered. In severe cases, it may lead to the extinction of fish species. As facilities commonly u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/14/2592 |
| _version_ | 1797587168338640896 |
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| author | Guorui Zeng Maosen Xu Jiegang Mou Keke Wang Yun Ren |
| author_facet | Guorui Zeng Maosen Xu Jiegang Mou Keke Wang Yun Ren |
| author_sort | Guorui Zeng |
| collection | DOAJ |
| description | With the development of hydraulic structures, rivers are becoming fragmented, and their connectivity is greatly affected. Important migratory routes through which fish complete their life processes are hindered. In severe cases, it may lead to the extinction of fish species. As facilities commonly used to assist fish upstreaming, fishways are significant for environmental remediation and have received attention from different scholars. This article proposed a new type of fishway, inspired by Tesla valves with obstructing reverse flow characteristics and classic fishway structures. Due to its characteristic of introducing a water-blocking island structure, it was denominated as an island-style fishway. This work studied an island fishway through a combination of physical models and numerical simulations. The results show that this fishway could achieve various flow patterns suitable for fish migration, and the flow rate control was stable. This study also explored the impact of island spacing arrangement on the turbulent structure of the pool chamber. It was found that when the island distance is set at 1.5d, indicators such as flow velocity and turbulent kinetic energy could achieve significant control effects. However, inappropriate d values might cause adverse effects. This research could provide reference ideas for the design of new fishways. |
| first_indexed | 2024-03-11T00:33:20Z |
| format | Article |
| id | doaj.art-7f5cb30197bd4d98aca9db924b1a238f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T00:33:20Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-7f5cb30197bd4d98aca9db924b1a238f2023-11-18T21:47:30ZengMDPI AGWater2073-44412023-07-011514259210.3390/w15142592Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical MethodsGuorui Zeng0Maosen Xu1Jiegang Mou2Keke Wang3Yun Ren4College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaCollege of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, ChinaZhijiang College, Zhejiang University of Technology, Hangzhou 310024, ChinaWith the development of hydraulic structures, rivers are becoming fragmented, and their connectivity is greatly affected. Important migratory routes through which fish complete their life processes are hindered. In severe cases, it may lead to the extinction of fish species. As facilities commonly used to assist fish upstreaming, fishways are significant for environmental remediation and have received attention from different scholars. This article proposed a new type of fishway, inspired by Tesla valves with obstructing reverse flow characteristics and classic fishway structures. Due to its characteristic of introducing a water-blocking island structure, it was denominated as an island-style fishway. This work studied an island fishway through a combination of physical models and numerical simulations. The results show that this fishway could achieve various flow patterns suitable for fish migration, and the flow rate control was stable. This study also explored the impact of island spacing arrangement on the turbulent structure of the pool chamber. It was found that when the island distance is set at 1.5d, indicators such as flow velocity and turbulent kinetic energy could achieve significant control effects. However, inappropriate d values might cause adverse effects. This research could provide reference ideas for the design of new fishways.https://www.mdpi.com/2073-4441/15/14/2592fishwayisland-stylehydraulic characteristicsfish migration |
| spellingShingle | Guorui Zeng Maosen Xu Jiegang Mou Keke Wang Yun Ren Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods Water fishway island-style hydraulic characteristics fish migration |
| title | Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods |
| title_full | Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods |
| title_fullStr | Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods |
| title_full_unstemmed | Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods |
| title_short | Research on the Hydraulic Characteristics of Island Fishways by Experimental and Numerical Methods |
| title_sort | research on the hydraulic characteristics of island fishways by experimental and numerical methods |
| topic | fishway island-style hydraulic characteristics fish migration |
| url | https://www.mdpi.com/2073-4441/15/14/2592 |
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