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arXiv · 0704.1314

Acoustic resonances in microfluidic chips: full-image micro-PIV experiments and numerical simulations

S. Melker Sundin·Thomas Glasdam Jensen·Henrik Bruus·Jorg P. Kutter
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Abstract

We show that full-image micro-PIV analysis in combination with images of transient particle motion is a powerful tool for experimental studies of acoustic radiation forces and acoustic streaming in microfluidic chambers under piezo-actuation in the MHz range. The measured steady-state motion of both large 5 um and small 1 um particles can be understood in terms of the acoustic eigenmodes or standing ultra-sound waves in the given experimental microsystems. This interpretation is supported by numerical solutions of the corresponding acoustic wave equation.

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S. Melker Sundin, Thomas Glasdam Jensen, Henrik Bruus, Jorg P. Kutter. 2007-04-10. Acoustic resonances in microfluidic chips: full-image micro-PIV experiments and numerical simulations. https://doi.org/10.1039/b704864e

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