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#### Article: Calculation of acoustical scattering from a cluster of scatterers

Title Calculation of acoustical scattering from a cluster of scatterers Koc, SChew, WC 1998 Acoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.html Journal Of The Acoustical Society Of America, 1998, v. 103 n. 2, p. 721-734 How to Cite? The problem of determining the field scattered by a cluster of scatterers when they are insonified by a known acoustical field is addressed. The problem is formulated by using the T-matrix method and the resulting system of linear equations is solved by using the multilevel fast multipole algorithm (MLFMA) and the fast multipole method-fast Fourier transform (FMMFFT) method, and the efficiency of the two methods is compared. It was observed that, in general, the MLFMA performs better than the FMMFFT algorithm. However, when the scatterers are distributed uniformly on a rectangular grid, the FMMFFT algorithm performs as good as the MLFMA. The accuracy of the methods is evaluated by modeling a spherical scatterer as composed of many small spheres. | The problem of determining the field scattered by a cluster of scatterers when they are insonified by a known acoustical field is addressed. The problem is formulated by using the T-matrix method and the resulting system of linear equations is solved by using the multilevel fast multipole algorithm (MLFMA) and the fast multipole method-fast Fourier transform (FMMFFT) method, and the efficiency of the two methods is compared. It was observed that, in general, the MLFMA performs better than the FMMFFT algorithm. However, when the scatterers are distributed uniformly on a rectangular grid, the FMMFFT algorithm performs as good as the MLFMA. The accuracy of the method is evaluated by modeling a spherical scatterer as composed of many small spheres. http://hdl.handle.net/10722/182590 0001-49662015 Impact Factor: 1.5722015 SCImago Journal Rankings: 0.938 WOS:000072042300009 References in Scopus

DC FieldValueLanguage
dc.contributor.authorKoc, Sen_US
dc.contributor.authorChew, WCen_US
dc.date.accessioned2013-05-02T05:16:00Z-
dc.date.available2013-05-02T05:16:00Z-
dc.date.issued1998en_US
dc.identifier.citationJournal Of The Acoustical Society Of America, 1998, v. 103 n. 2, p. 721-734en_US
dc.identifier.issn0001-4966en_US
dc.identifier.urihttp://hdl.handle.net/10722/182590-
dc.description.abstractThe problem of determining the field scattered by a cluster of scatterers when they are insonified by a known acoustical field is addressed. The problem is formulated by using the T-matrix method and the resulting system of linear equations is solved by using the multilevel fast multipole algorithm (MLFMA) and the fast multipole method-fast Fourier transform (FMMFFT) method, and the efficiency of the two methods is compared. It was observed that, in general, the MLFMA performs better than the FMMFFT algorithm. However, when the scatterers are distributed uniformly on a rectangular grid, the FMMFFT algorithm performs as good as the MLFMA. The accuracy of the methods is evaluated by modeling a spherical scatterer as composed of many small spheres. | The problem of determining the field scattered by a cluster of scatterers when they are insonified by a known acoustical field is addressed. The problem is formulated by using the T-matrix method and the resulting system of linear equations is solved by using the multilevel fast multipole algorithm (MLFMA) and the fast multipole method-fast Fourier transform (FMMFFT) method, and the efficiency of the two methods is compared. It was observed that, in general, the MLFMA performs better than the FMMFFT algorithm. However, when the scatterers are distributed uniformly on a rectangular grid, the FMMFFT algorithm performs as good as the MLFMA. The accuracy of the method is evaluated by modeling a spherical scatterer as composed of many small spheres.en_US
dc.languageengen_US
dc.publisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.htmlen_US
dc.relation.ispartofJournal of the Acoustical Society of Americaen_US
dc.titleCalculation of acoustical scattering from a cluster of scatterersen_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.identifier.doi10.1121/1.421231en_US
dc.identifier.scopuseid_2-s2.0-0032006826en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032006826&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume103en_US
dc.identifier.issue2en_US
dc.identifier.spage721en_US
dc.identifier.epage734en_US
dc.identifier.isiWOS:000072042300009-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKoc, S=7003829699en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US