Bouncing droplet dynamics above the Faraday threshold
Name
TambascoAboveThreshChaos.pdf
Description
Published version
Size
1.8 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Tambasco, Lucas
Pilgram, J. J.
Bush, John W. M.
Date Issued
September 2018
Journal
Chaos
Publisher
AIP Publishing
Citation
Tambasco, L. D. et al. "Bouncing droplet dynamics above the Faraday threshold." Chaos 28 (March 2018): 096107 © 2018 Author(s)
Version
Final published version
Abstract
We present the results of an experimental investigation of the dynamics of droplets bouncing on a vibrating fluid bath for forcing accelerations above the Faraday threshold. Two distinct fluid viscosity and vibrational frequency combinations (20 cS-80 Hz and 50 cS-50 Hz) are considered, and the dependence of the system behavior on drop size and vibrational acceleration is characterized. A number of new dynamical regimes are reported, including meandering, zig-zagging, erratic bouncing, coalescing, and trapped regimes. Particular attention is given to the regime in which droplets change direction erratically and exhibit a dynamics akin to Brownian motion. We demonstrate that the effective diffusivity increases with vibrational acceleration and decreases with drop size, as suggested by simple scaling arguments.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Terms of Use
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.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.5031426
