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- W4308166462 abstract "Based on the perfectly matched layer (PML) technique, this paper develops a high-accuracy boundary integral equation (BIE) solver for acoustic scattering problems in locally defected layered media in both two and three dimensions. The original scattering problem is truncated onto a bounded domain by the PML. Assuming the vanishing of the scattered field on the PML boundary, we derive BIEs on local defects only in terms of using PML-transformed free-space Green's function, and the four standard integral operators: single-layer, double-layer, transpose of double-layer, and hyper-singular boundary integral operators. The hyper-singular integral operator is transformed into a combination of weakly-singular integral operators and tangential derivatives. We develop a high-order Chebyshev-based rectangular-polar singular-integration solver to discretize all weakly-singular integrals. Numerical experiments for both two- and three-dimensional problems are carried out to demonstrate the accuracy and efficiency of the proposed solver." @default.
- W4308166462 created "2022-11-08" @default.
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- W4308166462 date "2022-11-02" @default.
- W4308166462 modified "2023-09-30" @default.
- W4308166462 title "A highly accurate perfectly-matched-layer boundary integral equation solver for acoustic layered-medium problems" @default.
- W4308166462 doi "https://doi.org/10.48550/arxiv.2211.00892" @default.
- W4308166462 hasPublicationYear "2022" @default.
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