Spectral element method for elastic and acoustic waves in frequency domain
Spectral element method for elastic and acoustic waves in frequency domain
复制标题
频域弹性波和声波的谱元法
DOI：
10.1016/j.jcp.2016.09.036
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发表时间：
2016-12
影响因子：
4.1
通讯作者：
Liu, Qing Huo
中科院分区：
文献类型：
--
作者：
Jia-Min Wang;Mingwei Zhuang;Na Liu;Liu, Qing Huo
Numerical techniques in time domain are widespread in seismic and acoustic modeling. In some applications, however, frequency-domain techniques can be advantageous over the time-domain approach when narrow band results are desired, especially if multiple sources can be handled more conveniently in the frequency domain. Moreover, the medium attenuation effects can be more accurately and conveniently modeled in the frequency domain. In this paper, we present a spectral-element method (SEM) in frequency domain to simulate elastic and acoustic waves in anisotropic, heterogeneous, and lossy media. The SEM is based upon the finite-element framework and has exponential convergence because of the use of GLL basis functions. The anisotropic perfectly matched layer is employed to truncate the boundary for unbounded problems. Compared with the conventional finite-element method, the number of unknowns in the SEM is significantly reduced, and higher order accuracy is obtained due to its spectral accuracy. To account for the acoustic-solid interaction, the domain decomposition method (DDM) based upon the discontinuous Galerkin spectral-element method is proposed. Numerical experiments show the proposed method can be an efficient alternative for accurate calculation of elastic and acoustic waves in frequency domain.
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影响因子：
3
作者：
T. Ohminato;B. Chouet
通讯作者：
T. Ohminato;B. Chouet
影响因子：
3
作者：
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通讯作者：
D. Komatitsch;J. Vilotte
DOI：
10.1109/tmtt.2005.860502
发表时间：
2006-01
影响因子：
4.3
作者：
Joon-Ho Lee;Tian Xiao;Qing Huo Liu
通讯作者：
Joon-Ho Lee;Tian Xiao;Qing Huo Liu
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DOI：
10.4208/cicp.230113.140814a
发表时间：
2015-01
影响因子：
4.3
作者：
Liu Na;Eduardo Tobon Luis;Zhao Yanmin;Tang Yifa;Liu Qing Huo
通讯作者：
Liu Qing Huo
影响因子：
2.8
作者：
Shen Wang;M. V. Hoop;J. Xia;X. Li
通讯作者：
Shen Wang;M. V. Hoop;J. Xia;X. Li