Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression
Applied Physics
2021-02-05 v2 Classical Physics
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.
Keywords
Cite
@article{arxiv.2004.11767,
title = {Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression},
author = {Zhixiong Gong and Michael Baudoin},
journal= {arXiv preprint arXiv:2004.11767},
year = {2021}
}