Academic Journal
The role of the droplet deformations in the bouncing droplet dynamics
| العنوان: | The role of the droplet deformations in the bouncing droplet dynamics |
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| المؤلفون: | Terwagne, D., Ludewig, F., Vandewalle, N., Dorbolo, S. |
| المصدر: | Physics of Fluids ; volume 25, issue 12 ; ISSN 1070-6631 1089-7666 |
| بيانات النشر: | AIP Publishing |
| سنة النشر: | 2013 |
| الوصف: | Droplets bouncing on a vibrated liquid bath open ways to methods of manipulating droplets, creating double emulsion, and performing pilot wave model experiments. In this work, we focus on the role of the droplet deformations in the vertical bouncing dynamics by neglecting the deformation of the surface of the bath. To be under this favorable condition, low viscous oil droplets are dropped over a highly viscous oil bath that is vibrated. These droplets bounce vertically on the surface of the bath and exhibit many periodic trajectories and resonant modes when tuning the forcing parameters, i.e., the oscillation of the bath. This complex dynamics emphasizes the interplay between elastic energy storage and energy dissipation in droplets at each bounce. We propose to model droplets using a bouncing mass-spring-damper system that mimics a deformable droplet bouncing on a non-deformable liquid bath. From the experimental measurements, we constructed bifurcation diagrams of the bouncing trajectories and challenged our bouncing spring model. The agreement between experiment and the spring model reveals that this model can be used to rationalize and predict a variety of bouncing droplets behaviors involving multi-periodicities. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1063/1.4832975 |
| DOI: | 10.1063/1.4832975/15943401/122101_1_online.pdf |
| الاتاحة: | http://dx.doi.org/10.1063/1.4832975 https://pubs.aip.org/aip/pof/article-pdf/doi/10.1063/1.4832975/15943401/122101_1_online.pdf |
| رقم الانضمام: | edsbas.FEEDA09E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1063/1.4832975 |
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