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- W2059020912 abstract "This paper presents an effective solution method for predicting acoustic radiation and scattering fields in two dimensions. The difficulty of the fictitious characteristic frequency is overcome by incorporating an auxiliary interior surface that satisfies certain boundary condition into the body surface. This process gives rise to a set of uniquely solvable boundary integral equations. Distributing monopoles with unknown strengths over the body and interior surfaces yields the simple source formulation. The modified boundary integral equations are further transformed to ordinary ones that contain nonsingular kernels only. This implementation allows direct application of standard quadrature formulas over the entire integration domain; that is, the collocation points are exactly the positions at which the integration points are located. Selecting the interior surface is an easy task. Moreover, only a few corresponding interior nodal points are sufficient for the computation. Numerical calculations consist of the acoustic radiation and scattering by acoustically hard elliptic and rectangular cylinders. Comparisons with analytical solutions are made. Numerical results demonstrate the efficiency and accuracy of the current solution method." @default.
- W2059020912 created "2016-06-24" @default.
- W2059020912 creator A5051892850 @default.
- W2059020912 date "2002-09-27" @default.
- W2059020912 modified "2023-09-24" @default.
- W2059020912 title "A boundary integral equation method using auxiliary interior surface approach for acoustic radiation and scattering in two dimensions" @default.
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- W2059020912 doi "https://doi.org/10.1121/1.1504852" @default.
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