A numerical study on a simplified tail model for turning fish in c-start
文献类型：期刊论文
| 作者 | Yang Yan1,2; Tong Bing-gang1 |
| 刊名 | Journal of hydrodynamics
 |
| 出版日期 | 2006-04-01 |
| 卷号 | 18期号:2页码:135-142 |
| ISSN号 | 1001-6058 |
| 关键词 | Fish swimming Turning manoeuvre C-start Tail fin locomotion 2d navier-stokes equations Cfd Physical mechanism Optimal control |
| 通讯作者 | Yang yan(yangy@ustc.edu) |
| 英文摘要 | Most freshwater fish are good at turning manoeuvres. a simulated fish tail model was numerically investigated and discussed in detail. this study deals with unsteady forces and moment exerted on the fish tail-fin in an initial sideways stroke and a subsequent return stroke motion, and visualizes the flow fields and vortex structures, in order to explore the flow control mechanism of the typical turning motion of fish. further discussion on fluid dynamic consequences corresponding to two different bending forms of fish tail-fins in its c-start is given. the two-dimensional unsteady incompressible navier-stokes equations are solved with a developed pseudo-compressibility method to simulate the flow around the fish tail-fin. the computed results and the comparison with experiments indicate that (1) fish performs a turning motion of its body using the impulsive moment produced by the to-and-fro stroke, and each stage of the process exhibits its specific hydrodynamic characteristic, (2) fishes adopt two forms of tail-tip bend (single bend and double bend) to accomplish a c-start turning manoeuvre, in dependence of their physical situations and natural environments, (3) fish can control its turning motion by modulating some key kinematic parameters. |
| WOS研究方向 | Mechanics |
| WOS类目 | Mechanics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:000208262000002 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379902 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yang Yan |
| 作者单位 | 1.Chinese Acad Sci, Grad Univ, Lab Biomech Anim Locomot, Beijing 100049, Peoples R China 2.Univ Sci & Technol China, Dept Mech & Mech Engn, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Yan,Tong Bing-gang. A numerical study on a simplified tail model for turning fish in c-start[J]. Journal of hydrodynamics,2006,18(2):135-142. |
| APA | Yang Yan,&Tong Bing-gang.(2006).A numerical study on a simplified tail model for turning fish in c-start.Journal of hydrodynamics,18(2),135-142. |
| MLA | Yang Yan,et al."A numerical study on a simplified tail model for turning fish in c-start".Journal of hydrodynamics 18.2(2006):135-142. |
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来源：中国科学院大学
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