Drops bouncing on a vibrating soap film

A millimetric drop bounces on a soap film.

We examine the dynamics arising when a water droplet bounces on a horizontal soap film suspended on a vertically oscillating circular frame. A variety of simple and complex periodic bouncing states are observed, in addition to multiperiodicity and period-doubling transitions to chaos. The system is simply and accurately modeled by a single ordinary differential equation, the numerical solution of which captures all the essential features of the observed behavior. Iterative maps and bifurcation diagrams indicate that the system exhibits all the features of a classic low-dimensional chaotic oscillator.

See Gilet & Bush (2009a) and Gilet & Bush (2009b) .

Our analysis of the dynamics is the first step towards a rational description of droplets bouncing and walking on a vibrating fluid bath.

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Different bouncing states for a droplet on a vibrating film.