Acoustic radiation force analysis using finite difference time domain method

被引：13
|
作者：
Grinenko, A. [1 ]
Wilcox, P. D. [1 ]
Courtney, C. R. P. [1 ]
Drinkwater, B. W. [1 ]
机构：
[1] Univ Bristol, Dept Mech Engn, Bristol BS8 1TR, Avon, England
来源：
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2012年 / 131卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
PARTICLE; PROLIFERATION; ULTRASOUND; VIABILITY; SPHERE; FIELD;
D O I：
10.1121/1.3699204
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Acoustic radiation force exerted by standing waves on particles is analyzed using a finite difference time domain Lagrangian method. This method allows the acoustic radiation force to be obtained directly from the solution of nonlinear fluid equations, without any assumptions on size or geometry of the particles, boundary conditions, or acoustic field amplitude. The model converges to analytical results in the limit of small particle radii and low field amplitudes, where assumptions within the analytical models apply. Good agreement with analytical and numerical models based on solutions of linear scattering problems is observed for compressible particles, whereas some disagreement is detected when the compressibility of the particles decreases. (C) 2012 Acoustical Society of America. [http://dx.doi.org/10.1121/1.3699204]
引用
收藏
页码：3664 / 3670
页数：7
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