Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry

Details Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry

2009-12-15

arxiv.org/abs/0912.2903v1

Xu, J. and D. Attinger, Acoustic excitation of superharmonic capillary waves on a meniscus in a planar microgeometry. Phys. Fl

Nonlinear Sciences

Adaptation and Self-Organizing Systems

Scientific paper

10.1063/1.2790968

The effects of ultrasound on the dynamics of an air-water meniscus in a planar micro-geometry are investigated experimentally. The sonicated meniscus exhibits harmonic traveling waves or standing waves, the latter corresponding to a higher ultrasound level. Standing capillary waves with subharmonic and superharmonic frequencies are also observed, and are explained in the framework of parametric resonance theory, using the Mathieu equation.

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