Water circulation induced by a centrifugal water streamer in rectangular reservoirs
The water velocity field in a rectangular reservoir driven by a previously unexplored water streamer is investigated experimentally and numerically. Firstly, the velocity field on the water surface induced in a rectangular reservoir is estimated from trajectories of floating passive tracers. Secondl...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2017-05-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/83/850/83_17-00042/_pdf/-char/en |
| _version_ | 1797989172364967936 |
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| author | Taishi INAGAKI Choji NAKAMURA Tomoaki ITANO Masako SUGIHARA-SEKI Jinsuke HYODO |
| author_facet | Taishi INAGAKI Choji NAKAMURA Tomoaki ITANO Masako SUGIHARA-SEKI Jinsuke HYODO |
| author_sort | Taishi INAGAKI |
| collection | DOAJ |
| description | The water velocity field in a rectangular reservoir driven by a previously unexplored water streamer is investigated experimentally and numerically. Firstly, the velocity field on the water surface induced in a rectangular reservoir is estimated from trajectories of floating passive tracers. Secondly, the velocity at the several fixed points below the surface is directly measured with the aid of an electro-magnetic velocimetry. These measurements elucidate that the streamer activates an underwater circulation between the surface and the bottom in the reservoir. Additionally, a numerical simulation is examined to realise the induced three-dimensional flow below the water surface. The obtained results provide an evidence that the induced flow structure is three-dimensionally spiral, which is distinct from that induced by the water streamers traditionally utilized in aquacultural reservoirs. The investigated streamer may be utilized for the purpose to particularly enhance the underwater vertical mixing in aquacultural reservoir or purification plant. |
| first_indexed | 2024-04-11T08:14:55Z |
| format | Article |
| id | doaj.art-7e71989bcf554f4ab0c4d0b06efc2d43 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T08:14:55Z |
| publishDate | 2017-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-7e71989bcf554f4ab0c4d0b06efc2d432022-12-22T04:35:11ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612017-05-018385017-0004217-0004210.1299/transjsme.17-00042transjsmeWater circulation induced by a centrifugal water streamer in rectangular reservoirsTaishi INAGAKI0Choji NAKAMURA1Tomoaki ITANO2Masako SUGIHARA-SEKI3Jinsuke HYODO4Faculty of System Engineering, Kansai UniversityFaculty of System Engineering, Kansai UniversityFaculty of System Engineering, Kansai UniversityFaculty of System Engineering, Kansai UniversityMMA solutionsThe water velocity field in a rectangular reservoir driven by a previously unexplored water streamer is investigated experimentally and numerically. Firstly, the velocity field on the water surface induced in a rectangular reservoir is estimated from trajectories of floating passive tracers. Secondly, the velocity at the several fixed points below the surface is directly measured with the aid of an electro-magnetic velocimetry. These measurements elucidate that the streamer activates an underwater circulation between the surface and the bottom in the reservoir. Additionally, a numerical simulation is examined to realise the induced three-dimensional flow below the water surface. The obtained results provide an evidence that the induced flow structure is three-dimensionally spiral, which is distinct from that induced by the water streamers traditionally utilized in aquacultural reservoirs. The investigated streamer may be utilized for the purpose to particularly enhance the underwater vertical mixing in aquacultural reservoir or purification plant.https://www.jstage.jst.go.jp/article/transjsme/83/850/83_17-00042/_pdf/-char/enwater streamercentrifugal-pumprectangular reservoirturbulent mixingaquaculturecirculation |
| spellingShingle | Taishi INAGAKI Choji NAKAMURA Tomoaki ITANO Masako SUGIHARA-SEKI Jinsuke HYODO Water circulation induced by a centrifugal water streamer in rectangular reservoirs Nihon Kikai Gakkai ronbunshu water streamer centrifugal-pump rectangular reservoir turbulent mixing aquaculture circulation |
| title | Water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| title_full | Water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| title_fullStr | Water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| title_full_unstemmed | Water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| title_short | Water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| title_sort | water circulation induced by a centrifugal water streamer in rectangular reservoirs |
| topic | water streamer centrifugal-pump rectangular reservoir turbulent mixing aquaculture circulation |
| url | https://www.jstage.jst.go.jp/article/transjsme/83/850/83_17-00042/_pdf/-char/en |
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