Complete radiation boundary conditions for the Helmholtz equation II: domains with corners
Complete radiation boundary conditions for the Helmholtz equation II: domains with corners
复制标题
亥姆霍兹方程 II 的完整辐射边界条件:有角的域
DOI:
10.1007/s00211-023-01352-0
复制
发表时间:
2023
影响因子:
2.1
通讯作者:
Kim, Seungil
中科院分区:
文献类型:
--
作者:
Hagstrom, Thomas;Kim, Seungil
This paper continues Part I (Hagstrom and Kim in Numer Math 141(4):917–966, 2019) of the investigation on the complete radiation boundary condition (CRBC) in waveguides. In this paper, we propose corner compatibility conditions for CRBC applied to the Helmholtz equation posed in. Since CRBC is developed as a high-order absorbing boundary condition approximating the radiation condition by using rational functions via the cross-sectional Fourier analysis, it is well-studied and its accurate performance is validated on a straight/planar fictitious boundary in waveguides. However in the presence of corners on artificial absorbing boundaries such as boundaries of rectangular domains, a special treatment for corner conditions is required. We design and validate the accurate CRBC with the corner compatibility conditions on rectangular domains. We also analyze the existence and uniqueness of solutions to the Helmholtz equation coupled with CRBC with the corner compatibility conditions. Finally, numerical experiments illustrating the accuracy of CRBC will be presented.
登录
查看更多内容
DOI:
10.1515/1569398054308595
发表时间:
2005
期刊:
arXiv: Mathematical Software
影响因子:
--
作者:
A. Medovikov;V. Lebedev
通讯作者:
V. Lebedev
影响因子:
2.4
作者:
Seungil Kim
通讯作者:
Seungil Kim
影响因子:
2.4
作者:
Seungil Kim
通讯作者:
Seungil Kim
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
R. Kechroud;X. Antoine;A. Soulaïmani
通讯作者:
A. Soulaïmani
影响因子:
2.9
作者:
BAMBERGER, A;JOLY, P;ROBERTS, JE
通讯作者:
ROBERTS, JE