Thrust generation and wake structure of wiggling hydrofoil

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Thrust generation and wake structure of wiggling hydrofoil
	He GY; Zhang SG; Zhang X(张星); Zhang X(张星)
刊名	Applied Mathematics and Mechanics
	2010
通讯作者邮箱	zhangx@lnm.imech.ac.cn
卷号	31 期号:5 页码:585–592
关键词	propulsive performance wiggling motion immersed boundary method wake
ISSN号	0253-4827
通讯作者	张星
合作状况	国内
中文摘要	Marine animals and micro-machines often use wiggling motion to generate thrust. The wiggling motion can be modeled by a progressive wave where its wavelength describes the flexibility of wiggling animals. In the present study, an immersed boundary method is used to simulate the flows around the wiggling hydrofoil NACA 65-010 at low Reynolds numbers. One can find from the numerical simulations that the thrust generation is largely determined by the wavelength. The thrust coefficients decrease with the increasing wavelength while the propulsive efficiency reaches a maximum at a certain wavelength due to the viscous effects. The thrust generation is associated with two different flow patterns in the wake: the well-known reversed Karman vortex streets and the vortex dipoles. Both are jet-type flows where the thrust coefficients associated with the reversed Karman vortex streets are larger than the ones associated with the vortex diploes.
学科主题	流体力学
收录类别	SCI
原文出处	http://dx.doi.org/10.1007/s10483-010-0506-9
语种	英语
WOS记录号	WOS:000277625100006
公开日期	2011-03-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/43314]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Zhang X(张星)
推荐引用方式 GB/T 7714	He GY,Zhang SG,Zhang X,et al. Thrust generation and wake structure of wiggling hydrofoil[J]. Applied Mathematics and Mechanics,2010,31(5):585–592.
APA	He GY,Zhang SG,Zhang X,&张星.(2010).Thrust generation and wake structure of wiggling hydrofoil.Applied Mathematics and Mechanics,31(5),585–592.
MLA	He GY,et al."Thrust generation and wake structure of wiggling hydrofoil".Applied Mathematics and Mechanics 31.5(2010):585–592.