Boundary element methods for acoustic scattering by fractal screens
Boundary element methods for acoustic scattering by fractal screens
复制标题
分形屏幕声散射的边界元方法
DOI:
10.1007/s00211-021-01182-y
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发表时间:
2021
影响因子:
2.1
通讯作者:
Chandler-Wilde S
中科院分区:
文献类型:
--
作者:
Chandler-Wilde S
We study boundary element methods for time-harmonic scattering in() by a fractal planar screen, assumed to be a non-empty bounded subsetof the hyperplane. We consider two distinct cases: (i)is a relatively open subset ofwith fractal boundary (e.g. the interior of the Koch snowflake in the case); (ii)is a compact fractal subset ofwith empty interior (e.g. the Sierpinski triangle in the case). In both cases our numerical simulation strategy involves approximating the fractal screenby a sequence of smoother “prefractal” screens, for which we compute the scattered field using boundary element methods that discretise the associated first kind boundary integral equations. We prove sufficient conditions on the mesh sizes guaranteeing convergence to the limiting fractal solution, using the framework of Mosco convergence. We also provide numerical examples illustrating our theoretical results.
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影响因子:
0.8
作者:
Chandler-Wilde S
通讯作者:
Chandler-Wilde S
DOI:
10.1142/s021953051650024x
发表时间:
2015
期刊:
arXiv: Functional Analysis
影响因子:
--
作者:
D. Hewett;A. Moiola
通讯作者:
A. Moiola
影响因子:
0.8
作者:
S. Chandler;D. Hewett;A. Moiola
通讯作者:
A. Moiola
DOI:
10.1051/m2an/2017033
发表时间:
2017
期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
--
作者:
Raffaela Capitanelli;M. Vivaldi
通讯作者:
M. Vivaldi
影响因子:
3.8
作者:
Rupesh Verma;M. Sharma;V. Banerjee;P. Senthilkumaran
通讯作者:
P. Senthilkumaran