Space-time stochastic Galerkin boundary elements for acoustic scattering problems
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866917728709771264 |
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| author | Gimperlein, Heiko Meyer, Fabian Özdemir, Ceyhun |
| author_facet | Gimperlein, Heiko Meyer, Fabian Özdemir, Ceyhun |
| contents | Acoustic emission or scattering problems naturally involve uncertainties about the sound sources or boundary conditions. This article initiates the study of time domain boundary elements for such stochastic boundary problems for the acoustic wave equation. We present a space-time stochastic Galerkin boundary element method which is applied to sound-hard, sound-soft and absorbing scatterers. Uncertainties in both the sources and the boundary conditions are considered using a polynomial chaos expansion. The numerical experiments illustrate the performance and convergence of the proposed method in model problems and present an application to a problem from traffic noise. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_08565 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Space-time stochastic Galerkin boundary elements for acoustic scattering problems Gimperlein, Heiko Meyer, Fabian Özdemir, Ceyhun Numerical Analysis Computational Engineering, Finance, and Science Acoustic emission or scattering problems naturally involve uncertainties about the sound sources or boundary conditions. This article initiates the study of time domain boundary elements for such stochastic boundary problems for the acoustic wave equation. We present a space-time stochastic Galerkin boundary element method which is applied to sound-hard, sound-soft and absorbing scatterers. Uncertainties in both the sources and the boundary conditions are considered using a polynomial chaos expansion. The numerical experiments illustrate the performance and convergence of the proposed method in model problems and present an application to a problem from traffic noise. |
| title | Space-time stochastic Galerkin boundary elements for acoustic scattering problems |
| topic | Numerical Analysis Computational Engineering, Finance, and Science |
| url | https://arxiv.org/abs/2405.08565 |