Journal article

A rapid and meshless analytical model of acoustofluidic pressure fields for waveguide design

Richard O'Rorke, David Collins, Ye Ai



Acoustofluidics has a strong pedigree in microscale manipulation, with particle and cell separation and patterning arising from acoustic pressure gradients. Acoustic waveguides are a promising candidate for localizing force fields in microfluidic devices, for which computational modelling is an important design tool. Meshed finite element analysis is a popular approach for this, yet its computation time increases rapidly when complex geometries are used, limiting its usefulness. Here, we present an analytical model of the acoustic pressure field in a microchannel arising from a surface acoustic wave (SAW) boundary condition that computes in milliseconds and provide the simulation code in the..

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University of Melbourne Researchers


Awarded by Singapore Ministry of Education Academic Research Fund Tier 2

Funding Acknowledgements

This work was supported by Singapore Ministry of Education Academic Research Fund Tier 2 (T2MOE1603) awarded to Y.A. We would like to thank Professor Adrian Neild and Dr. Citsabehsan Devendran from the Monash Institute of Medical Engineering at Monash University for valuable discussions on the numerical treatment of near-field acoustofluidic phenomena.