A computational study on backward swimming hydrodynamics in the eel anguilla anguilla
文献类型：期刊论文
| 作者 | Hu Wen-rong1,2; Tong Bin-gang1; Ma Hui-yang1; Liu Hao3 |
| 刊名 | Journal of hydrodynamics
 |
| 出版日期 | 2005 |
| 卷号 | 17期号:4页码:438-447 |
| 关键词 | Anguilla anguilla Backward swimming Hydrodynamics 2-d n-s equation solution |
| ISSN号 | 1001-6058 |
| 通讯作者 | Hu wen-rong(wrhu@263.net) |
| 英文摘要 | Eels can perform both forward and backward undulatory swimming but few studies are seen on how eels propel themselves backward. a computational study on the unsteady hydrodynamics of the backward swimming in the eel anguilla anguilla is carried out and presented. a two-dimensional geometric model of the european eel body in its middle horizontal section is appropriately approximated by a na-ca0005 airfoil. kinematic data of the backward and forward swimming eel used in the computational modeling are based on the experimental results of the european eel. present study provided the different flow field characteristics of three typical cases in the backward swimming, and confirmed the guess of wu: when the eel swims steadily, the vortex centers of the reversed von karman vortex street are aligned approximately. an extensive comparison between the backward and forward swimming further reveals that the controllable parameters, such as frequency, amplitude and wavelength of the traveling wave, have a similar influence on the propulsion performance as in forward swimming. but it is shown that the backward swimming does not be a "reversed" forward swimming one. the backward swimming does show significant discrepancy in the propulsion performance: utilization of a constant-amplitude wave profile enables larger force generation for maneuverability but with much lower propulsive efficiency instead of the linear-increasing amplitude wave profile in the forward swimming. the actual swimming modes eels choose is the best choice associated with their propulsive requirement, as well as their physiological and ecological adaptation. |
| WOS研究方向 | Mechanics |
| WOS类目 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000208261600007 |
| 出版者 | ELSEVIER SCIENCE INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377935 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Hu Wen-rong |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100039, Peoples R China 2.Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200240, Peoples R China 3.Chiba Univ, Dept Elect & Mech Engn, Chiba, Japan |
| 推荐引用方式 GB/T 7714 | Hu Wen-rong,Tong Bin-gang,Ma Hui-yang,et al. A computational study on backward swimming hydrodynamics in the eel anguilla anguilla[J]. Journal of hydrodynamics,2005,17(4):438-447. |
| APA | Hu Wen-rong,Tong Bin-gang,Ma Hui-yang,&Liu Hao.(2005).A computational study on backward swimming hydrodynamics in the eel anguilla anguilla.Journal of hydrodynamics,17(4),438-447. |
| MLA | Hu Wen-rong,et al."A computational study on backward swimming hydrodynamics in the eel anguilla anguilla".Journal of hydrodynamics 17.4(2005):438-447. |
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来源：中国科学院大学
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