流体中颗粒的声辐射力矩：基于角谱的紧致表达式
Acoustic radiation torque on a particle in a fluid: an angular spectrum based compact expression
摘要：
在这项工作中，我们推导出一组紧凑的解析公式表示的三维声辐射扭矩（ART）施加在嵌入在流体中的任意形状的颗粒和insonified由任意声场。该公式使得能够从由Sapozhnikov和Bailey引入的基于角谱的波束形状系数直接计算ART [J. Acoust. Soc. Am. 133，661（2013）]和分波系数。当声源平面中的声场已知时，它特别适合于确定施加在颗粒上的ART。
英文摘要：
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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