Collective vibrations of confined levitating droplets
Name
PhysRevFluids.5.083601.pdf
Description
Published version
Size
1.18 MB
Format
Adobe PDF
Checksum (MD5)
3efba5790cdca7e771b28b133c012764
Author(s)
Thomson, SJ
Couchman, MMP
Bush, JWM
Date Issued
2020
Journal
Physical Review Fluids
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2020 American Physical Society. We report the results of our investigation of a fluid-based driven-dissipative oscillator system consisting of a lattice of millimetric fluid droplets bouncing on a vertically vibrating liquid bath and bound within an annular ring. We characterize the system behavior as it is energized through a progressive increase in the bath's vibrational acceleration. Depending on the number of drops, the onset of motion of the lattice may take the form of either out-of-phase oscillations or a striking solitary wavelike instability. Theoretical modeling demonstrates that these behaviors may be attributed to different bifurcations at the onset of instability. The results presented here demonstrate the potential and utility of the walking droplet system as a platform for investigating wave-mediated, inertial, nonequilibrium particle dynamics at the macroscale.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Terms of Use
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DOI of Published Version
https://doi.org/10.1103/PHYSREVFLUIDS.5.083601
