Review of experimental work in biomimetic foils
TLDR
In this article, a review of the basic mechanisms of force production and flow manipulation in oscillating foils for underwater use is presented, focusing primarily on experimental studies on some of the, at least partially understood, mechanisms, which include the formation of streets of vortices around and behind two-and three-dimensional propulsive oscillating flapping foils.Abstract:
Significant progress has been made in understanding some of the basic mechanisms of force production and flow manipulation in oscillating foils for underwater use. Biomimetic observations, however, show that there is a lot more to be learned, since many of the functions and details of fish fins remain unexplored. This review focuses primarily on experimental studies on some of the, at least partially understood, mechanisms, which include 1) the formation of streets of vortices around and behind two- and three-dimensional propulsive oscillating foils; 2) the formation of vortical structures around and behind two- and three-dimensional foils used for maneuvering, hovering, or fast-starting; 3) the formation of leading-edge vortices in flapping foils, under steady flapping or transient conditions; 4) the interaction of foils with oncoming, externally generated vorticity; multiple foils, or foils operating near a body or wall.read more
Citations
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Passive and Active Flow Control by Swimming Fishes and Mammals
Frank E. Fish,George V. Lauder +1 more
TL;DR: The vortex wake shed by the tail differs between eel-like fishes and fishes with a discrete narrowing of the body in front of the tail, and three-dimensional effects may play a major role in determining wake structure in most fishes.
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Flapping Wing Aerodynamics: Progress and Challenges
TL;DR: In this article, a review of recent developments in the understanding and prediction of flapping-wing aerodynamics is presented, with a special emphasis on the dependence of thrust, lift, and propulsive efficiency on flapping mode, amplitude, frequency, and wing shape.
Journal ArticleDOI
Mechanics and control of swimming: a review
J.E. Colgate,Kevin M. Lynch +1 more
TL;DR: In this paper, the authors review clues to artificial swimmer design taken from fish physiology and formalize and review the control problems that must be solved by a robot fish, and exploit fish locomotion principles to address the truly difficult control challenges of station keeping under large perturbations.
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Wake topology and hydrodynamic performance of low-aspect-ratio flapping foils
TL;DR: In this article, numerical simulations are used to investigate the effect of aspect ratio on the wake topology and hydrodynamic performance of thin ellipsoidal flapping foils.
Journal ArticleDOI
Trends in biorobotic autonomous undersea vehicles
TL;DR: In this article, a mechanistic understanding of the balance between cruising and maneuvering in swimming animals and undersea vehicles is given, where the potential in maneuvering and silencing is discussed.
References
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