NDLI: Where is the rudder of a fish?: the mechanism of swimming and control of self-propelled fish school

Content Provider	Springer Nature Link
Author	Wu, Chuijie Wang, Liang
Copyright Year	2009
Abstract	Numerical simulation and control of self-propelled swimming of two- and three-dimensional biomimetic fish school in a viscous flow are investigated. With a parallel computational fluid dynamics package for the two- and three-dimensional moving boundary problem, which combines the adaptive multi-grid finite volume method and the methods of immersed boundary and volume of fluid, it is found that due to the interactions of vortices in the wakes, without proper control, a fish school swim with a given flapping rule can not keep the fixed shape of a queue. In order to understand the secret of fish swimming, a new feedback control strategy of fish motion is proposed for the first time, i.e., the locomotion speed is adjusted by the flapping frequency of the caudal, and the direction of swimming is controlled by the swinging of the head of a fish. Results show that with this feedback control strategy, a fish school can keep the good order of a queue in cruising, turning or swimming around circles. This new control strategy, which separates the speed control and direction control, is important in the construction of biomimetic robot fish, with which it greatly simplifies the control devices of a biomimetic robot fish.
Starting Page	45
Ending Page	65
Page Count	21
File Format	PDF
ISSN	05677718
Journal	Acta Mechanica Sinica
Volume Number	26
Issue Number	1
e-ISSN	16143116
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-10-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Self-propelled swimming Feedback control strategy of fish swimming Direction control Locomotion speed control Three-dimensional biomimetic fish Computational Intelligence Engineering Fluid Dynamics Classical Continuum Physics Theoretical and Applied Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Computational Mechanics

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