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arXiv · 2004.11767

Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression

Zhixiong Gong·Michael Baudoin
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Abstract

In this work, we derive a set of compact analytical formulas expressing the three-dimensional acoustic radiation torque (ART) exerted on a particle of arbitrary shape embedded in a fluid and insonified by an arbitrary acoustic field. This formulation enables direct computation of the ART from the angular spectrum based beam shape coefficients introduced by Sapozhnikov and Bailey [J. Acoust. Soc. Am. 133, 661 (2013)] and the partial wave coefficients. It is particularly well suited to determine the ART exerted on a particle when the acoustic field is known in a source plane.

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Zhixiong Gong, Michael Baudoin. 2020-04-24. Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression. https://doi.org/10.1121/10.0002491

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