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Modeling of frequency-domain elastic-wave equation with a general optimal scheme
Li, Aman1,2,3; Liu, Hong1,2,3; Yuan, Yuxin1,2,3; Hu, Ting1,2,3; Guo, Xuebao1,2,3,4
2018-12-01
发表期刊JOURNAL OF APPLIED GEOPHYSICS
ISSN0926-9851
卷号159页码:1-15
摘要Frequency-domain numerical modeling is an important foundation of frequency-domain full waveform inversion.However, the conventional 9-point scheme for frequency-domain 2D elastic-wave equation requires lots of sampling grid points but with limited precision. In this paper, we develop a general optimal 9-point scheme for frequency-domain 2D elastic-wave equation to reduce sampling grid points and improve the accuracy.The numerical dispersion analysis shows that this scheme can effectively reduce the grid point of per wavelength. The new scheme can be applied to equal and unequal spatial sampling intervals, which is convenient for their applications in practice Accuracy analysis demonstrates that the results of the optimal nine-point scheme are in better agreement with the analytic solutions relative to the conventional 9-point scheme.We deduce the perfectly matched layer (PML) absorbing boundary condition to eliminate the artificial boundary influence.Two numerical examples are used to demonstrate the effectiveness of the general optimal scheme for frequency-domainelastic-wave equation. (C) 2018 Elsevier B.V. All rights reserved.
关键词Elastic wave Frequency-domain modeling Optimization
DOI10.1016/j.jappgeo.2018.07.014
资助者Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
关键词[WOS]FINITE-DIFFERENCE ; INVERSION ; SCALAR ; SPACE
语种英语
资助项目Major State Research Development Program of China[2016YFC0601101] ; National Natural Science Foundation of China[41630319]
资助者Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向Geology ; Mining & Mineral Processing
WOS类目Geosciences, Multidisciplinary ; Mining & Mineral Processing
WOS记录号WOS:000453644600001
出版者ELSEVIER SCIENCE BV
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/90298
专题油气资源研究院重点实验室
通讯作者Li, Aman
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Northeast Petr Univ, Sch Earth Sci, Daqing 163318, Peoples R China
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GB/T 7714
Li, Aman,Liu, Hong,Yuan, Yuxin,et al. Modeling of frequency-domain elastic-wave equation with a general optimal scheme[J]. JOURNAL OF APPLIED GEOPHYSICS,2018,159:1-15.
APA Li, Aman,Liu, Hong,Yuan, Yuxin,Hu, Ting,&Guo, Xuebao.(2018).Modeling of frequency-domain elastic-wave equation with a general optimal scheme.JOURNAL OF APPLIED GEOPHYSICS,159,1-15.
MLA Li, Aman,et al."Modeling of frequency-domain elastic-wave equation with a general optimal scheme".JOURNAL OF APPLIED GEOPHYSICS 159(2018):1-15.
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