The Nyström Method for Elastic Wave Scattering by Unbounded Rough Surfaces

The Nyström Method for Elastic Wave Scattering by Unbounded Rough Surfaces

Year:    2024

Author:    Jianliang Li, Xiaoli Liu, Bo Zhang, Haiwen Zhang

Journal of Computational Mathematics, Vol. 42 (2024), Iss. 5 : pp. 1407–1426

Abstract

We consider a numerical algorithm for the two-dimensional time-harmonic elastic wave scattering by unbounded rough surfaces with Dirichlet boundary condition. A Nyström method is proposed for the scattering problem based on the integral equation method. Convergence of the Nyström method is established with convergence rate depending on the smoothness of the rough surfaces. In doing so, a crucial role is played by analyzing the singularities of the kernels of the relevant boundary integral operators. Numerical experiments are presented to demonstrate the effectiveness of the method.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jcm.2304-m2022-0185

Journal of Computational Mathematics, Vol. 42 (2024), Iss. 5 : pp. 1407–1426

Published online:    2024-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    20

Keywords:    Elastic wave scattering Unbounded rough surface Nyström method.

Author Details

Jianliang Li

Xiaoli Liu

Bo Zhang

Haiwen Zhang