Obstacles in acoustic waveguides becoming "invisible" at given frequencies

A. S. Bonnet-Ben Dhia; S. A. Nazarov

doi:10.1134/S1063771013050047

Obstacles in acoustic waveguides becoming "invisible" at given frequencies

A. S. Bonnet-Ben Dhia
, S. A. Nazarov

Saint Petersburg State University

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

We prove the existence of gently sloping perturbations of walls of an acoustic two-dimensional waveguide, for which several waves at given frequencies pass by the created obstacle without any distortion or with only a phase shift.

langue originale	Anglais
Pages (de - à)	633-639
Nombre de pages	7
journal	Acoustical Physics
Volume	59
Numéro de publication	6
Les DOIs	https://doi.org/10.1134/S1063771013050047
état	Publié - 1 nov. 2013

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10.1134/S1063771013050047

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title = "Obstacles in acoustic waveguides becoming {"}invisible{"} at given frequencies",

abstract = "We prove the existence of gently sloping perturbations of walls of an acoustic two-dimensional waveguide, for which several waves at given frequencies pass by the created obstacle without any distortion or with only a phase shift.",

keywords = "acoustic waveguide, asymptotic analysis, invisible scatterer, scattering",

author = "\{Bonnet-Ben Dhia\}, \{A. S.\} and Nazarov, \{S. A.\}",

year = "2013",

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doi = "10.1134/S1063771013050047",

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N2 - We prove the existence of gently sloping perturbations of walls of an acoustic two-dimensional waveguide, for which several waves at given frequencies pass by the created obstacle without any distortion or with only a phase shift.

AB - We prove the existence of gently sloping perturbations of walls of an acoustic two-dimensional waveguide, for which several waves at given frequencies pass by the created obstacle without any distortion or with only a phase shift.

KW - acoustic waveguide

KW - asymptotic analysis

KW - invisible scatterer

KW - scattering

U2 - 10.1134/S1063771013050047

DO - 10.1134/S1063771013050047

M3 - Article

AN - SCOPUS:84889026812

SN - 1063-7710

VL - 59

SP - 633

EP - 639

JO - Acoustical Physics

JF - Acoustical Physics

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Obstacles in acoustic waveguides becoming "invisible" at given frequencies

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