Transition in swimming direction in a model self-propelled inertial swimmer
Name
PhysRevFluids.4.021101.pdf
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1.78 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Dombrowski, Thomas
Jones, Shannon K.
Katsikis, Georgios
Bhalla, Amneet Pal Singh
Griffith, Boyce E.
Klotsa, Daphne
Date Issued
February 2019
Journal
Physical Review Fluids
Publisher
American Physical Society
Citation
Dombrowski, Thomas et al. "Transition in swimming direction in a model self-propelled inertial swimmer." Physical Review Fluids 4, 2 (February 2019): 021101(R) © 2019 American Physical Society
Version
Final published version
Abstract
We propose a reciprocal, self-propelled model swimmer at intermediate Reynolds numbers (Re). Our swimmer consists of two unequal spheres that oscillate in antiphase, generating nonlinear steady streaming (SS) flows. We show computationally that the SS flows enable the swimmer to propel itself, and also switch direction as Re increases. We quantify the transition in the swimming direction by collapsing our data on a critical Re and show that the transition in swimming directions corresponds to the reversal of the SS flows. Based on our findings, we propose that SS can be an important physical mechanism for motility at intermediate Re.
MIT Department
Koch Institute for Integrative Cancer Research at MIT
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevFluids.4.021101
