Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology
Underwater machinery withstands great resistance in the water, which can result in consumption of a large amount of power. Inspired by the character that loach could move quickly in mud, the drag reduction mechanism of Paramisgurnus dabryanus loach is discussed in this paper. Subjected to the compre...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Research
2020
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| Online Access: | https://eprints.nottingham.ac.uk/61368/ |
| _version_ | 1848799868909256704 |
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| author | Wu, Liyan Wang, Huan Song, Yuqiu Zhang, Benhua Xu, Yan Liu, Cuihong Yan, Yuying |
| author_facet | Wu, Liyan Wang, Huan Song, Yuqiu Zhang, Benhua Xu, Yan Liu, Cuihong Yan, Yuying |
| author_sort | Wu, Liyan |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Underwater machinery withstands great resistance in the water, which can result in consumption of a large amount of power. Inspired by the character that loach could move quickly in mud, the drag reduction mechanism of Paramisgurnus dabryanus loach is discussed in this paper. Subjected to the compression and scraping of water and sediments, a loach could not only secrete a lubricating mucus film, but also importantly, retain its mucus well from losing rapidly through its surface micro structure. In addition, it has been found that flexible deformations can maximize the drag reduction rate. This self-adaptation characteristic can keep the drag reduction rate always at high level in wider range of speeds. Therefore, even though the part of surface of underwater machinery cannot secrete mucus, it should be designed by imitating the bionic micro-morphology to absorb and store fluid, and eventually form a self-lubrication film to reduce the resistance. In the present study, the Paramisgurnus dabryanus loach is taken as the bionic prototype to learn how to avoid or slow down the mucus loss through its body surface. This combination of the flexible and micro morphology method provides a potential reference for drag reduction of underwater machinery. |
| first_indexed | 2025-11-14T20:42:31Z |
| format | Article |
| id | nottingham-61368 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T20:42:31Z |
| publishDate | 2020 |
| publisher | Nature Research |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-613682020-08-19T02:03:52Z https://eprints.nottingham.ac.uk/61368/ Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology Wu, Liyan Wang, Huan Song, Yuqiu Zhang, Benhua Xu, Yan Liu, Cuihong Yan, Yuying Underwater machinery withstands great resistance in the water, which can result in consumption of a large amount of power. Inspired by the character that loach could move quickly in mud, the drag reduction mechanism of Paramisgurnus dabryanus loach is discussed in this paper. Subjected to the compression and scraping of water and sediments, a loach could not only secrete a lubricating mucus film, but also importantly, retain its mucus well from losing rapidly through its surface micro structure. In addition, it has been found that flexible deformations can maximize the drag reduction rate. This self-adaptation characteristic can keep the drag reduction rate always at high level in wider range of speeds. Therefore, even though the part of surface of underwater machinery cannot secrete mucus, it should be designed by imitating the bionic micro-morphology to absorb and store fluid, and eventually form a self-lubrication film to reduce the resistance. In the present study, the Paramisgurnus dabryanus loach is taken as the bionic prototype to learn how to avoid or slow down the mucus loss through its body surface. This combination of the flexible and micro morphology method provides a potential reference for drag reduction of underwater machinery. Nature Research 2020-07-30 Article PeerReviewed application/pdf en cc_by https://eprints.nottingham.ac.uk/61368/1/Revised%20final%20manuscript%20%28LYWu-YYan%202020%29.pdf Wu, Liyan, Wang, Huan, Song, Yuqiu, Zhang, Benhua, Xu, Yan, Liu, Cuihong and Yan, Yuying (2020) Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology. Scientific Reports, 10 (1). ISSN 2045-2322 http://dx.doi.org/10.1038/s41598-020-69801-6 doi:10.1038/s41598-020-69801-6 doi:10.1038/s41598-020-69801-6 |
| spellingShingle | Wu, Liyan Wang, Huan Song, Yuqiu Zhang, Benhua Xu, Yan Liu, Cuihong Yan, Yuying Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title | Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title_full | Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title_fullStr | Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title_full_unstemmed | Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title_short | Drag reduction mechanism of Paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| title_sort | drag reduction mechanism of paramisgurnus dabryanus loach with self-lubricating and flexible micro-morphology |
| url | https://eprints.nottingham.ac.uk/61368/ https://eprints.nottingham.ac.uk/61368/ https://eprints.nottingham.ac.uk/61368/ |