%0 Journal Article
%T Acoustics of Bubble Arrays: Role Played by the Dipole Response of Bubbles
%A Arnaud Tourin
%A Margaux Thieury
%A Nicolas Chastrette
%A Olivier Lombard
%A Valentin Leroy
%J -
%D 2018
%R https://doi.org/10.3390/fluids3040095
%X Abstract 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results show that the new expression gives a good estimate of the concentration at which the monopole model is no longer valid, but fails at properly predicting the transmission. View Full-Tex
%K acoustics
%K bubble
%K metamaterial
%U https://www.mdpi.com/2311-5521/3/4/95