• Corpus ID: 51853433

Energetics of Swimming and Flying in Formation

@inproceedings{2005EnergeticsOS,
  title={Energetics of Swimming and Flying in Formation},
  author={},
  year={2005}
}
  • Published 2005
  • Physics
Formation movement during swimming and flying has been hypothesized to reduce an individual animal’s energy expenditure. Individuals in a formation distort the flow pattern, creating vorticity in their wake. Vorticity is produced from lifting surfaces and organized as wing tip vortices, from oscillating hydrofoils in the form of a thrust-type vortex street, and by flow separation from rigid bodies arranged as a K k h vortex street. The relative velocity induced by vorticity shed from leading… 

Figures from this paper

Passive propulsion in vortex wakes
A dead fish is propelled upstream when its flexible body resonates with oncoming vortices formed in the wake of a bluff cylinder, despite being well outside the suction region of the cylinder. Within
The Kármán gait: novel body kinematics of rainbow trout swimming in a vortex street
TLDR
Interestingly, trout swimming in front of a cylinder display lower tail-beat amplitudes and body wave speeds than trout subjected to any of the other treatments, implying that the bow wake may be the most energetically favorable region for a fish to hold station near a cylinder.
Interaction modes of multiple flexible flags in a uniform flow
Abstract Fish schooling is not merely a social behaviour; it also improves the efficiency of movement within a fluid environment. Inspired by the hydrodynamics of schooling, a group of flexible
A review of fish swimming mechanics and behaviour in altered flows
  • J. Liao
  • Environmental Science, Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2007
TLDR
New data are presented here which show that behaviour changes in altered flows when either the lateral line or vision is blocked, showing that fish rely on multi-modal sensory inputs to negotiate complex flow environments.
Fish swimming in schools save energy regardless of their spatial position
TLDR
It is suggested that the benefits of membership in moving groups may be more strongly linked to reducing the costs of locomotion than previously appreciated.
The increased efficiency of fish swimming in a school
TLDR
It is shown that model fish always swim more efficiently in a school than alone (except in a dense phalanx), and how this efficiency may emerge from several kinds of interactions between wakes and individuals is indicated.
Passive and Active Flow Control by Swimming Fishes and Mammals
TLDR
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.
Kinematics and energetic benefits of schooling in the labriform fish, striped surfperch Embiotoca lateralis
TLDR
It is estimated that for an energetic advantage to occur in a school of striped surfperch as a whole, more than 78% of the individuals need to be in trailing positions, which is likely to be a common occurrence based on previous observations of other schooling species.
...
...