Coupled fluid-structure interactions using the fast multipole method
The interaction of sound with an arbitrarily shaped underwater object must in general be treated as a coupled interaction between the fluid and structure, due to the acoustic impedance properties of water. Typically, this type of problem is solved by building a numerical model of the exterior fluid...
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| Format: | Conference Paper |
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The Australian Acoustical Society
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/23836 |
| _version_ | 1848751261549068288 |
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| author | Wilkes, Daniel Duncan, Alexander |
| author2 | David J Mee |
| author_facet | David J Mee Wilkes, Daniel Duncan, Alexander |
| author_sort | Wilkes, Daniel |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The interaction of sound with an arbitrarily shaped underwater object must in general be treated as a coupled interaction between the fluid and structure, due to the acoustic impedance properties of water. Typically, this type of problem is solved by building a numerical model of the exterior fluid and interior solid regions and then simultaneously solving the coupled system of equations, on the common fluid-structure interface. These models are restricted by their high cost in terms of computational time and memory. The fast multi pole method (FMM) significantly reduces these requirements and is applicable to many types of boundary integral equations. For simple structures, a coupled model using the FMM for both the fluid and structure will provide a substantial increase in the possible model size or frequency limit compared to traditional methods. This paper discusses stich a model and presents initial non-coupled results in the form of acoustic scattering and target strength results for the rigid BeTSSi submarine model. |
| first_indexed | 2025-11-14T07:49:55Z |
| format | Conference Paper |
| id | curtin-20.500.11937-23836 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:49:55Z |
| publishDate | 2011 |
| publisher | The Australian Acoustical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-238362023-01-27T05:26:32Z Coupled fluid-structure interactions using the fast multipole method Wilkes, Daniel Duncan, Alexander David J Mee Ian D M Hillock The interaction of sound with an arbitrarily shaped underwater object must in general be treated as a coupled interaction between the fluid and structure, due to the acoustic impedance properties of water. Typically, this type of problem is solved by building a numerical model of the exterior fluid and interior solid regions and then simultaneously solving the coupled system of equations, on the common fluid-structure interface. These models are restricted by their high cost in terms of computational time and memory. The fast multi pole method (FMM) significantly reduces these requirements and is applicable to many types of boundary integral equations. For simple structures, a coupled model using the FMM for both the fluid and structure will provide a substantial increase in the possible model size or frequency limit compared to traditional methods. This paper discusses stich a model and presents initial non-coupled results in the form of acoustic scattering and target strength results for the rigid BeTSSi submarine model. 2011 Conference Paper http://hdl.handle.net/20.500.11937/23836 The Australian Acoustical Society fulltext |
| spellingShingle | Wilkes, Daniel Duncan, Alexander Coupled fluid-structure interactions using the fast multipole method |
| title | Coupled fluid-structure interactions using the fast multipole method |
| title_full | Coupled fluid-structure interactions using the fast multipole method |
| title_fullStr | Coupled fluid-structure interactions using the fast multipole method |
| title_full_unstemmed | Coupled fluid-structure interactions using the fast multipole method |
| title_short | Coupled fluid-structure interactions using the fast multipole method |
| title_sort | coupled fluid-structure interactions using the fast multipole method |
| url | http://hdl.handle.net/20.500.11937/23836 |