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dc.contributor.authorWilkes, D.
dc.contributor.authorDuncan, Alec
dc.date.accessioned2017-01-30T13:05:45Z
dc.date.available2017-01-30T13:05:45Z
dc.date.created2015-10-29T04:09:08Z
dc.date.issued2015
dc.identifier.citationWilkes, D. and Duncan, A. 2015. Acoustic coupled fluid-structure interactions using a unified fast multipole boundary element method. Journal of the Acoustical Society of America. 137 (4): pp. 2158-2167.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/28553
dc.identifier.doi10.1121/1.4916603
dc.description.abstract

This paper presents a numerical model for the acoustic coupled fluid-structure interaction (FSI) of a submerged finite elastic body using the fast multipole boundary element method (FMBEM). The Helmholtz and elastodynamic boundary integral equations (BIEs) are, respectively, employed to model the exterior fluid and interior solid domains, and the pressure and displacement unknowns are coupled between conforming meshes at the shared boundary interface to achieve the acoustic FSI. The low frequency FMBEM is applied to both BIEs to reduce the algorithmic complexity of the iterative solution from O (N 2) to O (N 1.5) operations per matrix-vector product for N boundary unknowns. Numerical examples are presented to demonstrate the algorithmic and memory complexity of the method, which are shown to be in good agreement with the theoretical estimates, while the solution accuracy is comparable to that achieved by a conventional finite element-boundary element FSI model.

dc.publisherAcoustical Society of America
dc.titleAcoustic coupled fluid-structure interactions using a unified fast multipole boundary element method
dc.typeJournal Article
dcterms.source.volume137
dcterms.source.number4
dcterms.source.startPage2158
dcterms.source.endPage2167
dcterms.source.issn0001-4966
dcterms.source.titleJournal of the Acoustical Society of America
curtin.departmentCentre for Marine Science and Technology
curtin.accessStatusFulltext not available


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