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Cited by 306

The DOI matches its Crossref record; 59 of the 59 references it cites were found in a registry or an index.

Optimal Strouhal number for swimming animals

Open access
Eloy, Christophe·2012·Journal of Fluids and Structures
DOI 10.1016/j.jfluidstructs.2012.02.008
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Abstract

Abstract To evaluate the swimming performances of aquatic animals, an important dimensionless quantity is the Strouhal number, St = fA / U , with f the tail-beat frequency, A the peak-to-peak tail amplitude, and U the swimming velocity. Experiments with flapping foils have exhibited maximum propulsive efficiency in the interval 0.25 St 0.35 and it has been argued that animals likely evolved to swim in the same narrow interval. Using Lighthill's elongated-body theory to address undulatory propulsion, it is demonstrated here that the optimal Strouhal number increases from 0.15 to 0.8 for animals spanning from the largest cetaceans to the smallest tadpoles. To assess the validity of this model, the swimming kinematics of 53 different species of aquatic animals have been compiled from the literature and it shows that their Strouhal numbers are consistently near the predicted optimum.

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Metadata

Authors
Eloy, C.
Venue
Journal of Fluids and Structures
Publisher
Elsevier BV
Published
2012-04
Volume
30
Pages
205-218
ISSN
0889-9746 (ISSN-L)
DOI
10.1016/j.jfluidstructs.2012.02.008
OpenAlex
W2111591789
Cited by
306
References
59
FWCI
19.28
Type
journal article
Language
en
Open access
green

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.