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Author  |
Jerez-Hanckes, C.; Labarca, I. | ||||
| Title | Time-domain multiple traces boundary integral formulation for acoustic wave scattering in 2D | Type | |||
| Year | 2023 | Publication | Engineering Analysis with Boundary Elements | Abbreviated Journal | Eng. Anal. Bound. Elem. |
| Volume | 157 | Issue | Pages | 216-228 | |
| Keywords | Acoustic wave scattering; Wave transmission problems; Convolution quadrature; Time-domain boundary integral operators; Multiple traces formulation; Domain decomposition | ||||
| Abstract | We present a novel computational scheme to solve acoustic wave transmission problems over two-dimensional composite scatterers, i.e. penetrable obstacles possessing junctions or triple points. The continuous problem is cast as a local multiple traces time-domain boundary integral formulation. For discretization in time and space, we resort to convolution quadrature schemes coupled to a non-conforming spatial spectral discretization based on second kind Chebyshev polynomials displaying fast convergence. Computational experiments confirm convergence of multistep and multistage convolution quadrature for a variety of complex domains. | ||||
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| ISSN | 0955-7997 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | ||||
| Call Number | UAI @ alexi.delcanto @ | Serial | 1875 | ||
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