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dc.contributor.authorBarucq, H.
dc.contributor.authorDjellouli, R.
dc.contributor.authorSaint-Guirons, A.
dc.date.accessioned2017-02-21T08:19:29Z
dc.date.available2017-02-21T08:19:29Z
dc.date.issued2010-12-31
dc.identifier.issn0165-2125
dc.identifier.urihttp://hdl.handle.net/20.500.11824/634
dc.description.abstractThe performance of the second-order local approximate DtN boundary condition suggested in [4] is investigated analytically when employed for solving high-frequency exterior Helmholtz problems with elongated scatterers. This study is performed using a domain-based formulation and assuming the scatterer and the exterior artificial boundary to be prolate spheroid. The analysis proves that, in the high-frequency regime, the reflected waves at the artificial boundary decay faster than 1/(ka)15/8, where k is the wavenumber and a is the semi-major axis of this boundary. Numerical results are presented to illustrate the accuracy and the efficiency of the proposed absorbing boundary condition, and to provide guidelines for satisfactory performance.
dc.formatapplication/pdf
dc.language.isoengen_US
dc.rightsReconocimiento-NoComercial-CompartirIgual 3.0 Españaen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/en_US
dc.subjectAbsorbing boundary conditions
dc.subjectAcoustic scattering problems
dc.subjectDtN operator
dc.subjectElliptic coordinates
dc.subjectProlate spheroidal-shaped boundaries
dc.titleHigh-frequency analysis of the efficiency of a local approximate DtN2 boundary condition for prolate spheroidal-shaped boundariesen_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.identifier.doi10.1016/j.wavemoti.2010.04.004
dc.relation.publisherversionhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77958093110&doi=10.1016%2fj.wavemoti.2010.04.004&partnerID=40&md5=6b45fbe23827bdf34d7f1bb91c58e231
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen_US
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersionen_US
dc.journal.titleWave Motionen_US


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Reconocimiento-NoComercial-CompartirIgual 3.0 España
Except where otherwise noted, this item's license is described as Reconocimiento-NoComercial-CompartirIgual 3.0 España