Hydrodynamic Synchronization of Spontaneously Beating Filaments

Brato Chakrabarti and David Saintillan
Phys. Rev. Lett. 123, 208101 – Published 12 November 2019
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Abstract

Using a geometric feedback model of the flagellar axoneme accounting for dynein motor kinetics, we study elastohydrodynamic phase synchronization in a pair of spontaneously beating filaments with waveforms ranging from sperm to cilia and Chlamydomonas. Our computations reveal that both in-phase and antiphase synchrony can emerge for asymmetric beats while symmetric waveforms go in phase, and elucidate the mechanism for phase slips due to biochemical noise. Model predictions agree with recent experiments and illuminate the crucial roles of hydrodynamics and mechanochemical feedback in synchronization.

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  • Received 22 April 2019
  • Revised 12 September 2019

DOI:https://doi.org/10.1103/PhysRevLett.123.208101

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Physics of Living SystemsFluid DynamicsNonlinear Dynamics

Authors & Affiliations

Brato Chakrabarti and David Saintillan*

  • Department of Mechanical and Aerospace Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA

  • *dstn@ucsd.edu

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Issue

Vol. 123, Iss. 20 — 15 November 2019

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