Sound absorption by perforated walls along boundaries

dc.contributor.author	Donato, Patrizia
dc.contributor.author	Lamacz, Agnes
dc.contributor.author	Schweizer, Ben
dc.date.accessioned	2020-07-17T14:12:41Z
dc.date.available	2020-07-17T14:12:41Z
dc.date.issued	2020-06-03
dc.description.abstract	We analyze the Helmholtz equation in a complex domain. A sound absorbing structure at a part of the boundary is modelled by a periodic geometry with periodicity ε > 0. A resonator volume of thickness ε is connected with thin channels (opening ε^3) with the main part of the macroscopic domain. For this problem with three different scales we analyze solutions in the limit ε → 0 and find that the effective system can describe sound absorption.	en
dc.identifier.uri	http://hdl.handle.net/2003/39206
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-21123
dc.language.iso	en
dc.subject	Helmholtz equation	en
dc.subject	sound absorbers	en
dc.subject	homogenization	en
dc.subject	complex domain	en
dc.subject.ddc	610
dc.title	Sound absorption by perforated walls along boundaries	en
dc.type	Text	de
dc.type.publicationtype	preprint	en
dcterms.accessRights	open access
eldorado.secondarypublication	false

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