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Optimal vortex rings and aquatic propulsion mechanisms

Linden, P F; Turner, J

Description

Fishes swim by flapping their tail and other fins. Other sea creatures, such as squid and salps, eject fluid intermittently as a jet. We discuss the fluid mechanics behind these propulsion mechanisms and show that these animals produce optimal vortex rings, which give the maximum thrust for a given energy input. We show that fishes optimize both their steady swimming efficiency and their ability to accelerate and turn by producing an individual optimal ring with each flap of the tail or fin....[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/77135
Source: Proceedings of the Royal Society of London Series B: Biological Sciences
DOI: 10.1098/rspb.2003.2601

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