Abnormal acoustic transmission in a waveguide with perforated screens

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Abnormal acoustic transmission in a waveguide with perforated screens. / Chesnel, Lucas; Nazarov, Sergei A.

In: Comptes Rendus - Mecanique, Vol. 349, No. 1, 2021, p. 9-19.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{caaa9effa2c84db0a30dbc3db80ba7cd,

title = "Abnormal acoustic transmission in a waveguide with perforated screens",

abstract = "We consider the propagation of the piston mode in an acoustic waveguide obstructed by two screens with small holes. In general, due to the features of the geometry, almost no energy of the incident wave is transmitted through the structure. The goal of this article is to show that by tuning carefully the distance between the two screens, which form a resonator, one can get almost complete transmission. We obtain an explicit criterion, not so obvious to intuit, for this phenomenon to happen. Numerical experiments illustrate the analysis.",

keywords = "Abnormal transmission, Asymptotic analysis, Perforated screens, Resonator, Waveguides",

author = "Lucas Chesnel and Nazarov, {Sergei A.}",

year = "2021",

doi = "10.5802/CRMECA.70",

language = "English",

volume = "349",

pages = "9--19",

journal = "Comptes Rendus - Mecanique",

issn = "1631-0721",

publisher = "Elsevier",

number = "1",

}

RIS

TY - JOUR

T1 - Abnormal acoustic transmission in a waveguide with perforated screens

AU - Chesnel, Lucas

AU - Nazarov, Sergei A.

PY - 2021

Y1 - 2021

N2 - We consider the propagation of the piston mode in an acoustic waveguide obstructed by two screens with small holes. In general, due to the features of the geometry, almost no energy of the incident wave is transmitted through the structure. The goal of this article is to show that by tuning carefully the distance between the two screens, which form a resonator, one can get almost complete transmission. We obtain an explicit criterion, not so obvious to intuit, for this phenomenon to happen. Numerical experiments illustrate the analysis.

AB - We consider the propagation of the piston mode in an acoustic waveguide obstructed by two screens with small holes. In general, due to the features of the geometry, almost no energy of the incident wave is transmitted through the structure. The goal of this article is to show that by tuning carefully the distance between the two screens, which form a resonator, one can get almost complete transmission. We obtain an explicit criterion, not so obvious to intuit, for this phenomenon to happen. Numerical experiments illustrate the analysis.

KW - Abnormal transmission

KW - Asymptotic analysis

KW - Perforated screens

KW - Resonator

KW - Waveguides

UR - http://www.scopus.com/inward/record.url?scp=85102597922&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/fad832f3-8a75-3d27-8ad9-fe87250620fa/

U2 - 10.5802/CRMECA.70

DO - 10.5802/CRMECA.70

M3 - Article

AN - SCOPUS:85102597922

VL - 349

SP - 9

EP - 19

JO - Comptes Rendus - Mecanique

JF - Comptes Rendus - Mecanique

SN - 1631-0721

IS - 1

ER -

ID: 88367048