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Delay boundary conditions for elastic wave modeling

文献类型：期刊论文

作者Tian, XB; Wu, QJ; Zeng, RS
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2004-03-01
卷号47期号:2页码:268-273
关键词Numerical Modeling Of Wave Field Delay Boundary Conditions Phase-delay Amplitude Attermation
ISSN号0001-5733
文献子类Article
英文摘要In numerical modeling of elastic wave equations, an artificial boundary must be given around the area in which the wave propagation is interesting. Unlike the wave filed within the boundary, the wave filed on the boundary cannot be calculated using the center difference method, thus the numerical,calculation precision is decreased greatly, as a result reflection is generated. To remove the reflection generated on the boundary, a delay boundary condition method is proposed in this paper. On the basis of the fact that there are the same phase-delay and. the same coefficient of amplitude attenuation on equidistant particles in the direction of the, wave propagation, the phase-delay and the coefficient of amplitude attenuation on the boundary can be calculated using the wavefield within the boundary, thus the precision of the wave field on the boundary is improved and the reflection is avoided.
WOS关键词PROPAGATION PROBLEMS ; EQUATION ; SIMULATION ; MEDIA
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000220590000013
出版者SCIENCE CHINA PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/64495]  
专题中国科学院地质与地球物理研究所
通讯作者Tian, XB
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.China Seismol Bur, Inst Geophys, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Tian, XB,Wu, QJ,Zeng, RS. Delay boundary conditions for elastic wave modeling[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(2):268-273.
APA Tian, XB,Wu, QJ,&Zeng, RS.(2004).Delay boundary conditions for elastic wave modeling.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(2),268-273.
MLA Tian, XB,et al."Delay boundary conditions for elastic wave modeling".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.2(2004):268-273.

入库方式： OAI收割

来源：地质与地球物理研究所

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