ArticlePloS one2017
Optimal specific wavelength for maximum thrust production in undulatory propulsion.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Composite B-spline regularized delta functions for the immersed boundary method: Divergence-free interpolation and gradient-preserving force spreading.Journal of computational physics · 2026Article
- LOCAL DIVERGENCE-FREE IMMERSED FINITE ELEMENT-DIFFERENCE METHOD USING COMPOSITE B-SPLINES.Advances in computational science and engineering · 2025Article
- Benchmarking the Immersed Boundary Method for Viscoelastic Flows.Journal of computational physics · 2024Article
- Identification of the trade-off between speed and efficiency in undulatory swimming using a bio-inspired robot.Scientific reports · 2023Article
- On the Lagrangian-Eulerian Coupling in the Immersed Finite Element/Difference Method.Journal of computational physics · 2022Article
- An Immersed Interface Method for Discrete Surfaces.Journal of computational physics · 2020Article
- Immersed Methods for Fluid-Structure Interaction.Annual review of fluid mechanics · 2020Article
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Authors and funding
5 authors.
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Abstract
What wavelengths do undulatory swimmers use during propulsion? In this work we find that a wide range of body/caudal fin (BCF) swimmers, from larval zebrafish and herring to fully-grown eels, use specific wavelength (ratio of wavelength to tail amplitude of undulation) values that fall within a relatively narrow range. The possible emergence of this constraint is interrogated using numerical simulations of fluid-structure interaction. Based on these, it was found that there is an optimal specific wavelength (OSW) that maximizes the swimming speed and thrust generated by an undulatory swimmer. The observed values of specific wavelength for BCF animals are relatively close to this OSW. The mechanisms underlying the maximum propulsive thrust for BCF swimmers are quantified and are found to be consistent with the mechanisms hypothesized in prior work. The adherence to an optimal value of specific wavelength in most natural hydrodynamic propulsors gives rise to empirical design criteria for man-made propulsors.
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