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arXiv · 0912.2903

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

Jie Xu·Daniel Attinger
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Abstract

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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Jie Xu, Daniel Attinger. 2009-12-15. Acoustic excitation of superharmonic capillary waves on a meniscus in a planar micro-geometry. https://doi.org/10.1063/1.2790968

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