Interplays between elastic particles in an ultrasonic standing wave

被引：3

作者：

Jia, Kun ^{[1
]}

Li, Liqiang ^{[2
]}

Wang, Yulong ^{[1
]}

Yang, Keji ^{[2
]}

Chen, Jian ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, 28 West Xianning Rd, Xian 710049, Peoples R China

[2] Zhejiang Univ, Sch Mech Engn, State Key Lab Fluid Power & Mechatron Syst, 38 Zheda Rd, Hangzhou 310027, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2020年 / 13卷 / 02期

关键词：

ACOUSTIC-RADIATION FORCE; BUBBLES; SPHERES; PRESSURE;

D O I：

10.35848/1882-0786/ab6ca5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Separated particles are agglomerated only by the secondary radiation force when trapped at the pressure node. However, the mechanism behind this phenomenon remains unclear. Here, interplays among elastic particles in a trapping process induced by an ultrasonic standing wave are numerically and experimentally investigated. The effects of multi-scattering on particle movement are analyzed by solving the comprehensive acoustic-structure interactions. The theoretical calculations well explain the observed inter-particle behaviors in experiments when they are at or approaching the pressure nodes. Ultrasonic trapping of 100 mu m silica particles is experimentally showcased, and the result agrees well with the prediction. (C) 2020 The Japan Society of Applied Physics

引用

页数：6

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