Numerical calculation of acoustic radiation force and torque on non-spherical particles in Bessel beams

2016 ◽  
Vol 139 (4) ◽  
pp. 2071-2071 ◽  
Author(s):  
Felix B. Wijaya ◽  
Kian Meng Lim
Keyword(s):  
Numerical Calculation ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Spherical Particles ◽  
Bessel Beams

Acoustic radiation force due to arbitrary incident fields on spherical particles in soft tissue

2015 ◽  
Author(s):  
Benjamin C. Treweek ◽  
Yurii A. Ilinskii ◽  
Evgenia A. Zabolotskaya ◽  
Mark F. Hamilton
Keyword(s):  
Soft Tissue ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Spherical Particles

scholarly journals Numerical Determination of the Secondary Acoustic Radiation Force on a Small Sphere in a Plane Standing Wave Field

Micromachines ◽  
2019 ◽  
Vol 10 (7) ◽  
pp. 431 ◽  
Author(s):  
Simon ◽  
Andrade ◽  
Desmulliez ◽  
Riehle ◽  
Bernassau
Keyword(s):  
Finite Element ◽  
Numerical Methods ◽  
Acoustic Waves ◽  
Acoustic Radiation ◽  
Direct Calculation ◽  
Radiation Force ◽  
Acoustic Radiation Force ◽  
Spherical Particles ◽  
Inviscid Fluid ◽  
Finite Element Software

Two numerical methods based on the Finite Element Method are presented for calculating the secondary acoustic radiation force between interacting spherical particles. The first model only considers the acoustic waves scattering off a single particle, while the second model includes re-scattering effects between the two interacting spheres. The 2D axisymmetric simplified model combines the Gor’kov potential approach with acoustic simulations to find the interacting forces between two small compressible spheres in an inviscid fluid. The second model is based on 3D simulations of the acoustic field and uses the tensor integral method for direct calculation of the force. The results obtained by both models are compared with analytical equations, showing good agreement between them. The 2D and 3D models take, respectively, seconds and tens of seconds to achieve a convergence error of less than 1%. In comparison with previous models, the numerical methods presented herein can be easily implemented in commercial Finite Element software packages, where surface integrals are available, making it a suitable tool for investigating interparticle forces in acoustic manipulation devices.

Sign in / Sign up

Export Citation Format

Share Document