A Hybrid Method Combining the Edge Source Integral Equation and the Boundary Element Method for Scattering Problems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F16%3A00301546" target="_blank" >RIV/68407700:21720/16:00301546 - isvavai.cz</a>

Výsledek na webu

<a href="http://acousticalsociety.org/" target="_blank" >http://acousticalsociety.org/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1121/2.0000226" target="_blank" >10.1121/2.0000226</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Hybrid Method Combining the Edge Source Integral Equation and the Boundary Element Method for Scattering Problems

Popis výsledku v původním jazyce

A hybrid method for acoustic scattering problems is studied in this paper. The boundary element method is combined with a recently developed edge diffraction based method [J. Acoust. Soc. Am. 133, pp. 3681-3691, 2013]. Although the edge diffraction method has been shown to provide accurate results for convex, rigid objects at a very attractive computational cost, it has some numerical challenges for certain radiation directions. The hybrid method suggested here has the same structure as the boundary element method (BEM): a first step where the sound pressure is calculated on the surface of the scattering object, and a second step where the scattered sound is obtained at any external receiver point. In this method, the edge diffraction based method is used for the first step and then the calculation of the scattered sound is calculated a la BEM by means of the Kirchhoff - Helmholtz Integral equation. Several benchmark cases are studied and the results are compared to different methods.

Název v anglickém jazyce

A Hybrid Method Combining the Edge Source Integral Equation and the Boundary Element Method for Scattering Problems

Popis výsledku anglicky

A hybrid method for acoustic scattering problems is studied in this paper. The boundary element method is combined with a recently developed edge diffraction based method [J. Acoust. Soc. Am. 133, pp. 3681-3691, 2013]. Although the edge diffraction method has been shown to provide accurate results for convex, rigid objects at a very attractive computational cost, it has some numerical challenges for certain radiation directions. The hybrid method suggested here has the same structure as the boundary element method (BEM): a first step where the sound pressure is calculated on the surface of the scattering object, and a second step where the scattered sound is obtained at any external receiver point. In this method, the edge diffraction based method is used for the first step and then the calculation of the scattered sound is calculated a la BEM by means of the Kirchhoff - Helmholtz Integral equation. Several benchmark cases are studied and the results are compared to different methods.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/LO1605" target="_blank" >LO1605: Univerzitní centrum energeticky efektivních budov – Fáze udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of Meetings on Acoustics

ISBN

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ISSN

1939-800X

e-ISSN

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Počet stran výsledku

12

Strana od-do

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Název nakladatele

Acoustical Society of America

Místo vydání

Melville

Místo konání akce

Salt Lake City

Datum konání akce

23. 5. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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