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Issue 15, 2014
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Investigation of acoustic streaming patterns around oscillating sharp edges

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Abstract

Oscillating sharp edges have been employed to achieve rapid and homogeneous mixing in microchannels using acoustic streaming. Here, we used a perturbation approach to study the flow around oscillating sharp edges in a microchannel. This work extends prior experimental studies to numerically characterize the effect of various parameters on the acoustically induced flow. Our numerical results match well with the experimental results. We investigated multiple device parameters such as the tip angle, oscillation amplitude, and channel dimensions. Our results indicate that, due to the inherent nonlinearity of acoustic streaming, the channel dimensions could significantly impact the flow patterns and device performance.

Graphical abstract: Investigation of acoustic streaming patterns around oscillating sharp edges

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Publication details

The article was received on 12 Feb 2014, accepted on 17 Apr 2014 and first published on 06 Jun 2014


Article type: Paper
DOI: 10.1039/C4LC00191E
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Citation: Lab Chip, 2014,14, 2824-2836
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    Investigation of acoustic streaming patterns around oscillating sharp edges

    N. Nama, P. Huang, T. J. Huang and F. Costanzo, Lab Chip, 2014, 14, 2824
    DOI: 10.1039/C4LC00191E

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