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Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

Matrix method for acoustic levitation simulation.

Marco A B Andrade¹, Nicolas Perez, Flavio Buiochi

¹Mechatronics Engineering Department at Escola Politecnica da Universidade de Sao Paulo, Sao Paulo, Brazil. marcobrizzotti@gmail.com

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

|August 24, 2011

Summary

This summary is machine-generated.

A novel matrix method accurately simulates acoustic levitators, predicting acoustic radiation forces on levitated objects. This method enables precise control in noncontact manipulation systems.

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Area of Science:

Acoustics
Mechanical Engineering
Physics

Background:

Acoustic levitators use ultrasonic transducers and reflectors to manipulate small objects.
Simulating acoustic radiation forces is crucial for designing effective levitation systems.

Purpose of the Study:

To present a matrix method for simulating acoustic levitators.
To validate the method's accuracy and assess its computational efficiency.

Main Methods:

The matrix method, based on the Rayleigh integral, accounts for multiple reflections between transducers and reflectors.
The method determines the acoustic radiation force potential in a standing wave field.
Validation involved comparing results with the finite element method for an axisymmetric model.

Main Results:

The matrix method accurately predicted the horizontal positioning of a levitated sphere in a two-transducer system.
Experimental results using a charge-coupled device camera confirmed the simulation's accuracy.
The method successfully simulated non-symmetric acoustic levitators with minimal computational cost.

Conclusions:

The matrix method provides an efficient and accurate tool for simulating acoustic levitators.
This simulation technique facilitates the design and control of advanced noncontact manipulation systems.
The method's ability to handle non-symmetric configurations offers significant advantages for future research and applications.