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Related Experiment Video

Updated: Apr 26, 2026

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Fabrication and Operation of Acoustofluidic Devices Supporting Bulk Acoustic Standing Waves for Sheathless Focusing of Particles

Published on: March 6, 2016

Modeling and optimization of acoustofluidic micro-devices.

Philipp Hahn¹, Olivier Schwab, Jurg Dual

¹Institute of Mechanical Systems (IMES), Department of Mechanical and Process Engineering, ETH Zurich, Tannenstrasse 3, CH-8092 Zurich, Switzerland. hahnp@ethz.ch.

|August 9, 2014

Summary

This study presents an automated design method for micro-devices using numerical simulations and optimization. This approach enables the creation of acoustofluidic devices with desired acoustic properties and enhanced performance.

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Area of Science:

Engineering
Physics
Microfluidics

Background:

Accurate modeling of micro-devices is crucial for optimizing performance.
Acoustofluidics relies on precise simulation models for effective device design.

Purpose of the Study:

To develop an automated design approach for micro-devices using numerical simulation and optimization.
To demonstrate the capability of designing acoustofluidic devices with specific acoustic characteristics.

Main Methods:

Summarizing the modeling of acoustofluidic devices.
Formulating the optimization problem and parameterizing device design.
Implementing an optimization loop using a genetic algorithm.

Main Results:

Validated the design approach by comparing an optimized planar resonator with literature data.
Successfully designed a 3D micro-device to generate desired acoustic mode shapes at maximum pressure amplitude.

Conclusions:

The automated design approach significantly speeds up and simplifies the development of highly optimized micro-devices.
This method is highly relevant for advancing the field of acoustofluidics.