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Erschienen in: Acta Mechanica Sinica 4/2017

22.06.2017 | Research Paper

Forces and energetics of intermittent swimming

verfasst von: Daniel Floryan, Tyler Van Buren, Alexander J. Smits

Erschienen in: Acta Mechanica Sinica | Ausgabe 4/2017

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Abstract

Experiments are reported on intermittent swimming motions. Water tunnel experiments on a nominally two-dimensional pitching foil show that the mean thrust and power scale linearly with the duty cycle, from a value of 0.2 all the way up to continuous motions, indicating that individual bursts of activity in intermittent motions are independent of each other. This conclusion is corroborated by particle image velocimetry (PIV) flow visualizations, which show that the main vortical structures in the wake do not change with duty cycle. The experimental data also demonstrate that intermittent motions are generally energetically advantageous over continuous motions. When metabolic energy losses are taken into account, this conclusion is maintained for metabolic power fractions less than 1.

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Metadaten
Titel
Forces and energetics of intermittent swimming
verfasst von
Daniel Floryan
Tyler Van Buren
Alexander J. Smits
Publikationsdatum
22.06.2017
Verlag
The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences
Erschienen in
Acta Mechanica Sinica / Ausgabe 4/2017
Print ISSN: 0567-7718
Elektronische ISSN: 1614-3116
DOI
https://doi.org/10.1007/s10409-017-0694-3

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