| Effect of bending kinematics for caudal fin on swimming performance with varying undulation wavelengths | |
Huang S(黄顺)1,2; Guo DL(郭迪龙)1,2 ; Song, Jialei3,4; Wang YW(王一伟)1,2; Yang GW(杨国伟)1,2; Yin B(银波)1,2
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| Corresponding Author | Yin, Bo(yinbo@imech.ac.cn) |
| Source Publication | OCEAN ENGINEERING (IF:2.73[JCR-2018],3.067[5-Year]) |
| 2024-11-01 | |
| Volume | 311Pages:17 |
| ISSN | 0029-8018 |
| Abstract | Fish can undulate diversely to achieve superior swimming performance, however, most studies explored the undulatory kinematics with flexible caudal fin bending as an extension of the trunk undulation. Whereas most caudal fins in real fish are collagenous membranes supported by a series of tunably stiff bony fin rays, they can also oscillate rigidly in addition to undulating deformation. In this paper, we adopt a comparative study of flexible caudal fin with specific undulatory kinematics(Mode I) versus rigid one attached to peduncle (Mode II) and compare their hydrodynamic performances with various wavelengths(7). 7 ). To account for the fluid dynamics around the fish, we utilize a sharp-interface immersed boundary method (IBM) IBM ) to solve Navier-Stokes flow. The results show that, for high-frequency undulation, at small 7 , caudal fin bending Mode II strengthens the caudal fin leading-edge vortex ( LEVs ) attachment, associated with thrust enhancement. For different tail morphology, the effects of caudal fin bending kinematics are consistent. The difference lies in the fact that the indented tail generates slightly higher thrust than the lunate tail at the cost of significant energy consumption when 7 is less than the body length for Mode II. Whereas at low undulation frequency, 7 is close to the body length, the drag is smaller and the thrust is greater for various caudal fin morphologies and bending kinematics. Additionally, Mode II exhibits a messy wake that elevates power cost compared to Mode I with varying undulation wavelengths, while this distinction shrinks as 7 increases. This study may tweak the findings previously obtained using the idealized sinusoidal kinematics model and emphasize the rigidity of caudal fin in the bio-inspired robot fish. |
| Keyword | Fish swimming performance Bending kinematics Caudal fin Undulation wavelengths Immersed boundary method |
| DOI | 10.1016/j.oceaneng.2024.118907 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001297644900001 |
| WOS Keyword | HYDROMECHANICS ; SHAPES ; BODY |
| WOS Research Area | Engineering ; Oceanography |
| WOS Subject | Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography |
| Funding Project | National Natural Science Foundation of China[12272383] ; natural science foundation of Guangdong province, China[2023A1515011506] ; Guangdong Provincial Key Labo-ratory of Intelligent Disaster Prevention and Emergency Technologies for Urban Lifeline Engineering, China[2022B1212010016] |
| Funding Organization | National Natural Science Foundation of China ; natural science foundation of Guangdong province, China ; Guangdong Provincial Key Labo-ratory of Intelligent Disaster Prevention and Emergency Technologies for Urban Lifeline Engineering, China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Yin, Bo |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/96428 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Dongguan Univ Technol, Sch Mech Engn, Dongguan 523808, Peoples R China; 4.Dongguan Univ Technol, Guangdong Prov Key Lab Intelligent Disaster Preven, Dongguan 523808, Peoples R China |
| Recommended Citation GB/T 7714 | Huang S,Guo DL,Song, Jialei,et al. Effect of bending kinematics for caudal fin on swimming performance with varying undulation wavelengths[J]. OCEAN ENGINEERING,2024,311:17.Rp_Au:Yin, Bo |
| APA | 黄顺,郭迪龙,Song, Jialei,王一伟,杨国伟,&银波.(2024).Effect of bending kinematics for caudal fin on swimming performance with varying undulation wavelengths.OCEAN ENGINEERING,311,17. |
| MLA | 黄顺,et al."Effect of bending kinematics for caudal fin on swimming performance with varying undulation wavelengths".OCEAN ENGINEERING 311(2024):17. |
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