Open Access

ARTICLE

Perfectly matched layer for acoustic waveguide modeling --- benchmark calculations and perturbation analysis

Ya Yan Lu¹, Jianxin Zhu²

1 Department of Mathematics, City University of HongKong, Kowloon, Hong Kong.
2 Department of Mathematics, Zhejiang University,Hangzhou, China

Computer Modeling in Engineering & Sciences 2007, 22(3), 235-248. https://doi.org/10.3970/cmes.2007.022.235

Abstract

The perfectly matched layer (PML) is a widely used technique for truncating unbounded domains in numerical simulations of wave propagation problems. In this paper, the PML technique is used with a standard one-way model to solve a benchmark problem for underwater acoustics modeling. Accurate solutions are obtained with a PML layer with a thickness of only a quarter of the wavelength. The effect of a PML is analyzed in a perturbation analysis for waveguides.

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