Work

Transmission of acoustic waves through 2D phononic crystal: visco-thermal and multiple scattering effects

Year: 2009

Type: article

Abstract: In this paper, we are interested in the transition between regimes where either visco-thermal or multiple scattering effects dominate for the propagation of acoustic waves through a 2D regular square array of rigid cylinders embedded in air. An extension of the numerical method using Schlömilch series is performed in order to account for visco-thermal losses. Comparison with experimental data and results from classical homogenization theory allows to study the transition between a low frequency limit (where viscous and thermal effects dominate) and a high frequency regime (where multiple scattering effects become predominant). For this particular geometry, a large frequency domain where visco-thermal and multiple scattering effects coexist is found.

Source: The European Physical Journal Applied Physics

DOI: 10.1051/epjap:2008203

Authors: A. Duclos, D. Lafarge, V. Pagneux

Institutions: Centre National de la Recherche Scientifique, Le Mans Université, Laboratoire d'Acoustique de l'Université du Mans

Language: English

Topic: Acoustic Wave Phenomena Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2144053909

FWCI: 1.001

Cites: 21

Cited by: 24

Related to: 10