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Capillary surfers: Wave-driven particles at a vibrating fluid interface

Ian Ho1,*, Giuseppe Pucci1,2,*, Anand U. Oza3, and Daniel M. Harris1,†

  • 1School of Engineering, Brown University, Providence, Rhode Island 02912, USA
  • 2University of Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, F-35000 Rennes, France
  • 3Department of Mathematical Sciences & Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, Newark, New Jersey 07102, USA

  • *Co-first author.
  • †Corresponding author: daniel_harris3@brown.edu
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Phys. Rev. Fluids 8, L112001 – Published 7 November, 2023

DOI: https://doi.org/10.1103/PhysRevFluids.8.L112001

Abstract

We present an experimental study of capillary surfers, a new fluid-mediated active system that bridges the gap between dissipation- and inertia-dominated regimes. Surfers are wave-driven particles that self-propel and interact on a fluid interface via an extended field of surface waves. A surfer's speed and interaction with its environment can be tuned broadly through the particle, fluid, and vibration parameters. The wave nature of interactions among surfers allows for multistability of interaction modes and promises a number of novel collective behaviors.

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synopsis

Synchronized Surfing of Self-Propelled Particles

Published 7 November, 2023

Millimeter-sized “surfers” can self-propel across a vibrating liquid surface, interacting with other surfers to create collective patterns.

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See Also

Theoretical modeling of capillary surfer interactions on a vibrating fluid bath

Anand U. Oza, Giuseppe Pucci, Ian Ho, and Daniel M. Harris
Phys. Rev. Fluids 8, 114001 (2023)

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Phys. Rev. Fluids 8, L112001– Published 7 November, 2023
  • Received 8 April 2021
  • Accepted 15 August 2023
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