Acoustics of Bubble Arrays: Role Played by the Dipole Response of Bubbles - Institut Langevin
Article Dans Une Revue Fluids Année : 2018

Acoustics of Bubble Arrays: Role Played by the Dipole Response of Bubbles

Résumé

A model for acoustic transmission through a 2D square crystal of R-radius bubbles with a lattice constant L was previously proposed. Assuming a purely monopole response of the bubbles, this model offers a simple analytical expression of the transmission. However, it is not applicable when the bubbles are too close to each other (L/R < 5). This article proposes an extension of the model by including the dipole response of the bubbles. Comparisons with numerical and experimental results show that the new expression gives a good estimate of the concentration at which the monopole model is no longer valid, but fails at properly predicting the transmission.

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hal-02323342 , version 1 (07-06-2024)

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Valentin Leroy, Nicolas Chastrette, Margaux Thieury, Olivier Lombard, Arnaud Tourin. Acoustics of Bubble Arrays: Role Played by the Dipole Response of Bubbles. Fluids, 2018, Special Issue Advances in Bubble Acoustics, 3 (4), pp.95. ⟨10.3390/fluids3040095⟩. ⟨hal-02323342⟩
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