Abstract
A millimetric droplet bouncing on the surface of a vibrating fluid bath can self-propel by virtue of a resonant interaction with its own wave field. This system represents the first known example of a pilot-wave system of the form envisaged by Louis de Broglie in his double-solution pilot-wave theory. We here develop a fluid model of pilot-wave hydrodynamics by coupling recent models of the droplet's bouncing dynamics with a more realistic model of weakly viscous quasi-potential wave generation and evolution. The resulting model is the first to capture a number of features reported in experiment, including the rapid transient wave generated during impact, the Doppler effect and walker-walker interactions.
Original language | English |
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Pages (from-to) | 361-388 |
Number of pages | 28 |
Journal | Journal of Fluid Mechanics |
Volume | 778 |
Early online date | 31 Jul 2015 |
DOIs | |
Publication status | Published - Sept 2015 |
Keywords
- capillary waves
- drops
- Faraday waves