Acoustic radiation force and torque on spheroidal particles in an ideal cylindrical chamber

In this article, the acoustic radiation force and torque exerted on a small spheroidal particle immersed in nonviscous fluid inside an ideal cylindrical chamber is theoretically investigated. The comprises hard top bottom (rigid boundary condition) soft or lateral wall. By assuming that much smaller than wavelength, analytical expressions of caused by wave arbitrary shape are presented. Unlike previous results, these given relative to fixed laboratory frame. model showcased for analyzing behavior elongated metallic microspheroid (with 10:1 aspect ratio) half-wavelength acoustofluidic with diameter few millimeters. results show aligns along nodal plane, causes translational motion speed up one body length per second. Finally, implications study propelled nanorods ultrasound discussed.