Arnold tongues in a microfluidic drop emitter.
The Letter reports an experimental study of microfluidic droplets produced in T junctions and subjected to a local periodic forcing. Synchronized and quasiperiodic regimes--organized into Arnold tongues and devil staircases--are reported for the first time for a system dedicated to drop emission. The nature of the dynamical regime controls the droplet characteristics. These phenomena are mostly controlled by the characteristics of the forcing and the flow conditions.
Willaime
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MMN lab, CNRS-ESPCI, 10, rue Vauquelin, 75005 Paris, France.
Barbier
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Kloul
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Maine
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Tabeling
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