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Undulatory Swimming in Viscoelastic Fluids
Open accessAbstract
The effects of fluid elasticity on the swimming behavior of the nematode Caenorhabditis elegans are experimentally investigated by tracking the nematode's motion and measuring the corresponding velocity fields. We find that fluid elasticity hinders self-propulsion. Compared to Newtonian solutions, fluid elasticity leads to up to 35% slower propulsion. Furthermore, self-propulsion decreases as elastic stresses grow in magnitude in the fluid. This decrease in self-propulsion in viscoelastic fluids is related to the stretching of flexible molecules near hyperbolic points in the flow.
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“A waveform modulation similar to that reported by Berri et al. (2009) for viscoelastic media was consequently reported also for increasing viscosities (Fang-Yen et al., 2010; Shen and Arratia, 2011).”
From Gait Modulation in C. elegans: An Integrated Neuromechanical Model (2012) · cites this paper as Shen and Arratia, 2011
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References 26 · Cited by 229
Research works printed but not linked: 20
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Metadata
- Authors
- Shen, X. N., & Arratia, P. E.
- Affiliations
- University of Pennsylvania (US)
- ORCID
- Arratia, P. E.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2011-05-16
- Volume
- 106
- Issue
- 20
- Pages
- 208101-208101
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1989751608
- Cited by
- 229
- References
- 26
- Citations by year
- 2026: 9 · 2025: 15 · 2024: 13 · 2023: 12 · 2022: 11 · 2021: 14 · 2020: 33 · 2019: 10 · 2018: 13 · 2017: 15 · 2016: 17 · 2015: 16 · 2014: 25 · 2013: 11 · 2012: 11
- FWCI
- 12.26
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- ScholarlyCommons (University of Pennsylvania) (submittedVersion)
- Scholarly Commons (University of Pennsylvania) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Science Foundation
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Micro and Nano Robotics
- Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Rheology and Fluid Dynamics Studies
- Physical Sciences › Engineering › Aerospace Engineering › Biomimetic flight and propulsion mechanisms
- Keywords
- undulatory swimming, viscoelastic fluids, Caenorhabditis elegans, self-propulsion, fluid elasticity, elastic stress, hyperbolic points, velocity field, microswimmers
- MeSH terms
- Animals, Kinetics, Movement, Swimming, Caenorhabditis elegans, Viscoelastic Substances
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- Shen, X. N., & Arratia, P. E. (2011). Undulatory Swimming in Viscoelastic Fluids. Physical Review Letters. https://doi.org/10.1103/physrevlett.106.208101
