Tuning the decay of sound in a viscous metamaterial

Using analytical results for viscous dissipation in phononic crystals, we calculate the decay coefficient of a sound wave propagating at low frequencies through a two-dimensional phononic crystal with a viscous fluid background. It is demonstrated that the effective acoustic viscosity of the phononi...

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Veröffentlicht in:	Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences physical, and engineering sciences, 2022-11, Vol.380 (2237), p.20220007-20220007
Hauptverfasser:	Ibarias, M., Doporto, J., Krokhin, A. A., Arriaga, J.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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