The roles of fish median fins on the hydrodynamics and muscle actuation in carangiform swimming

doi:10.1016/j.jfluidstructs.2023.104000

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	The roles of fish median fins on the hydrodynamics and muscle actuation in carangiform swimming
	Li, Yuhan 4; Song, Jialei 3,4; Zhong, Yong 2; Yin, Bo 1
刊名	JOURNAL OF FLUIDS AND STRUCTURES
	2023-11-01
卷号	123 页码:15
关键词	Median fins Muscle actuation Hydrodynamics Numerical simulation
ISSN号	0889-9746
DOI	10.1016/j.jfluidstructs.2023.104000
通讯作者	Song, Jialei(songjl@dgut.edu.cn) ; Zhong, Yong(zhongyong@scut.edu.cn)
英文摘要	Compared with swimmers with only caudal fins, swimmers with additional median fins, i.e. dorsal and anal fins can improve fish locomotive performance in cruising swimming. However, the effects of these fins on hydrodynamics, particularly on muscle actuation, remain poorly understood. In this study, we investigated four models (model i: with dorsal and anal fins; ii: without dorsal and anal fins; iii: with dorsal fin and without anal fin; iv: without dorsal fin and with anal fin) of cruising crucian carp using three-dimensional computational fluid dynamics (CFD) modeling. This study shows that both speed and thrust are improved in the presence of dorsal and anal fins, as the wake shed from these fins is intercepted by the caudal fin. Dorsal fin is discovered to increase the swimming efficiency, internal torque and the speed of the torque wave, whereas anal fin decreases these parameters. The adverse effects of these two fins are due to the difference in the phase of the forces generated on them and consequently affect the muscle actuation in the midbody and energy transmission around the peduncle. Our results provide new insight into the roles of the median fins in swimming performance and muscle actuation, which might benefit the design of fish-like robots.
资助项目	Guangdong Provincial Key Laboratory of Intelligent Disaster Prevention and Emergency Technologies for Urban Lifeline Engineering[2022B1212010016] ; Guangdong Basic and Applied Basic Research Foundation[2020A1515110584] ; DGUT startup[211135014] ; Natural Science Foundation of Guangdong Province[2022A1515011479] ; National Natural Science Foundation of China[62103152]
WOS关键词	DORSAL FIN ; LOCOMOTOR FUNCTION ; BODY STIFFNESS ; PATTERNS ; MODEL ; MECHANISMS ; KINEMATICS ; PROPULSION ; FORCES ; SAITHE
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:001105949600001
资助机构	Guangdong Provincial Key Laboratory of Intelligent Disaster Prevention and Emergency Technologies for Urban Lifeline Engineering ; Guangdong Basic and Applied Basic Research Foundation ; DGUT startup ; Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93514]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Song, Jialei; Zhong, Yong
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.South China Univ Technol, Shien Ming Wu Sch Intelligent Engn, Guangzhou, Peoples R China 3.Dongguan Univ Technol, Sch Mech Engn, Dongguan, Peoples R China 4.Dongguan Univ Technol, Guangdong Prov Key Lab Intelligent Disaster Preven, Dongguan, Peoples R China
推荐引用方式 GB/T 7714	Li, Yuhan,Song, Jialei,Zhong, Yong,et al. The roles of fish median fins on the hydrodynamics and muscle actuation in carangiform swimming[J]. JOURNAL OF FLUIDS AND STRUCTURES,2023,123:15.
APA	Li, Yuhan,Song, Jialei,Zhong, Yong,&Yin, Bo.(2023).The roles of fish median fins on the hydrodynamics and muscle actuation in carangiform swimming.JOURNAL OF FLUIDS AND STRUCTURES,123,15.
MLA	Li, Yuhan,et al."The roles of fish median fins on the hydrodynamics and muscle actuation in carangiform swimming".JOURNAL OF FLUIDS AND STRUCTURES 123(2023):15.