Acoustic Black Hole Generated by a Cluster of Oscillating Bubbles

Borsos, Zoltan; Simaciu, Ion; Dumitrescu, Gheorghe; Drafta, Viorel

doi:10.2478/bipmf-2021-0022

Abstract

The paper demonstrates that a liquid becomes inhomogeneous in interaction with an oscillating bubbles cluster. Because the refractive index of the liquid around the cluster has a radial variation, a spherical acoustic lens is generated. Under certain restrictive conditions, the acoustic lens behaves like an acoustic black hole.

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Acoustic Black Hole Generated by a Cluster of Oscillating Bubbles

Abstract

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