Bouncing droplet dynamics above the Faraday threshold
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 depe...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing
2019
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| Online Access: | https://hdl.handle.net/1721.1/123102 |
| _version_ | 1811093144297537536 |
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| author | Tambasco, Lucas Pilgram, J. J. Bush, John W. M. |
| author2 | Massachusetts Institute of Technology. Department of Mathematics |
| author_facet | Massachusetts Institute of Technology. Department of Mathematics Tambasco, Lucas Pilgram, J. J. Bush, John W. M. |
| author_sort | Tambasco, Lucas |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T15:40:24Z |
| format | Article |
| id | mit-1721.1/123102 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:40:24Z |
| publishDate | 2019 |
| publisher | AIP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1231022022-09-29T15:23:58Z Bouncing droplet dynamics above the Faraday threshold Tambasco, Lucas Pilgram, J. J. Bush, John W. M. Massachusetts Institute of Technology. Department of Mathematics 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. National Science Foundation (Grant DMS-1614043) National Science Foundation (Grant CMMI-1727565) 2019-12-03T17:07:55Z 2019-12-03T17:07:55Z 2018-09 2018-03 2019-11-08T16:32:01Z Article http://purl.org/eprint/type/JournalArticle 1054-1500 1089-7682 https://hdl.handle.net/1721.1/123102 Tambasco, L. D. et al. "Bouncing droplet dynamics above the Faraday threshold." Chaos 28 (March 2018): 096107 © 2018 Author(s) en http://dx.doi.org/10.1063/1.5031426 Chaos 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. application/pdf AIP Publishing MIT web domain |
| spellingShingle | Tambasco, Lucas Pilgram, J. J. Bush, John W. M. Bouncing droplet dynamics above the Faraday threshold |
| title | Bouncing droplet dynamics above the Faraday threshold |
| title_full | Bouncing droplet dynamics above the Faraday threshold |
| title_fullStr | Bouncing droplet dynamics above the Faraday threshold |
| title_full_unstemmed | Bouncing droplet dynamics above the Faraday threshold |
| title_short | Bouncing droplet dynamics above the Faraday threshold |
| title_sort | bouncing droplet dynamics above the faraday threshold |
| url | https://hdl.handle.net/1721.1/123102 |
| work_keys_str_mv | AT tambascolucas bouncingdropletdynamicsabovethefaradaythreshold AT pilgramjj bouncingdropletdynamicsabovethefaradaythreshold AT bushjohnwm bouncingdropletdynamicsabovethefaradaythreshold |