Abstract
An experimental study focuses on the airborne sound generated during bubble bursting at the surface of a liquid bath. It is found that the acoustic frequency drifts and increases, consistent with a Helmholtz-type resonance of the cavity being more and more opened as the thin film in the air retracts. As an extension, a simple model based on a collection of drifting Helmholtz resonators is proposed, capturing the main features of the fizzing sound of an effervescing beverage.
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