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Issue 11, 2020
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Acoustic interaction between 3D-fabricated cubic bubbles

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Abstract

Spherical bubbles are notoriously difficult to hold in specific arrangements in water and tend to dissolve over time. Here, using stereolithographic printing, we built an assembly of millimetric cubic frames overcoming these limitations. Indeed, each of these open frames holds an air bubble when immersed into water, resulting in bubbles that are stable for a long time and are still able to oscillate acoustically. Several bubbles can be placed in any wanted spatial arrangement, thanks to the fabrication process. We show that bubbles are coupled acoustically when disposed along lines, planes or in 3D arrangements, and that their collective resonance frequency is shifted to much lower values, especially for 3D arrangements where bubbles have a higher number of close neighbours. Considering that these cubic bubbles behave acoustically as spherical bubbles of the same volume, we develop a theory allowing one to predict the acoustical emission of any arbitrary group of bubbles, in agreement with experimental results.

Graphical abstract: Acoustic interaction between 3D-fabricated cubic bubbles

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Article information


Submitted
09 Dec 2019
Accepted
07 Feb 2020
First published
14 Feb 2020

This article is Open Access

Soft Matter, 2020,16, 2829-2835
Article type
Paper

Acoustic interaction between 3D-fabricated cubic bubbles

T. Combriat, P. Rouby-Poizat, A. A. Doinikov, O. Stephan and P. Marmottant, Soft Matter, 2020, 16, 2829
DOI: 10.1039/C9SM02423A

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    [Original citation] - Published by The Royal Society of Chemistry.

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