Two-Dimensional Self-Propelled Fish Motion in Medium: An Integrated Method for Deforming Body Dynamics and Unsteady Fluid Dynamics

Chin. Phys. Lett.

2008, Vol. 25

Issue (2): 597-600 DOI:

Original Articles

Two-Dimensional Self-Propelled Fish Motion in Medium: An Integrated Method for Deforming Body Dynamics and Unsteady Fluid Dynamics

YANG Yan^1,2;WU Guan-Hao³;YU Yong-Liang¹;TONG Bing-Gang¹

¹The Laboratory for Biomechanics of Animal Locomotion, Graduate University of Chinese Academy of Sciences, Beijing 100049²Department of Modern Mechanics, University of Science and Technology of China, Hefei 230026³State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084

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YANG Yan, WU Guan-Hao, YU Yong-Liang et al 2008 Chin. Phys. Lett. 25 597-600

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Abstract We present (1) the dynamical equations of deforming body and (2) an integrated method for deforming body dynamics and unsteady fluid dynamics, to investigate a modelled freely self-propelled fish. The theoretical model and practical method is applicable for studies on the general mechanics of animal
locomotion such as flying in air and swimming in water, particularly of free self-propulsion. The present results behave more credibly than the previous numerical studies and are close to the experimental results, and the aligned vortices pattern is discovered in cruising swimming.

Keywords: 45.50.-j. 47.11.Df 47.63.Mc 45.20.D- 02.60.Jh

Received: 31 October 2007 Published: 30 January 2008

PACS:	45.50.-j.
	47.11.Df	(Finite volume methods)
	47.63.mc	(High-Reynolds-number motions)
	45.20.D-	(Newtonian mechanics)
	02.60.Jh	(Numerical differentiation and integration)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2008/V25/I2/0597

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	YANG Yan
	WU Guan-Hao
	YU Yong-Liang
	TONG Bing-Gang

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