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Chapitre D'ouvrage Année : 2020

The effect of sharp-edge acoustic streaming on mixing in a microchannel

Résumé

Strong Acoustic Streaming (AS) in a liquid can be generated near sharp-edge structures inside a microchannel. In this study, an experimental setup containing a Y-mixer and a sharp-edge patterned microchannel excited by a piezo-transducer is built. Based on visualisation and Iodide-Iodate Reactions, both macro-and micro-mixing performance are investigated. Results show that acoustic streaming allows a decrease of micromixing time from 0.3 s to 0.04 s. Meanwhile, the mixing enhancement by AS is very sensitive to the channel throughput, as the residence time becomes shorter at higher flowrates.
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Dates et versions

hal-02908146 , version 1 (23-09-2020)

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Chuanyu Zhang, Xiaofeng Guo, Philippe Brunet, Laurent Royon. The effect of sharp-edge acoustic streaming on mixing in a microchannel. Annales de congrès SFT 2020, 2020, ⟨10.25855/SFT2020-041⟩. ⟨hal-02908146⟩
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