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Extending the stability limit of explicit scheme with spatial filtering for solving wave equations

文献类型：期刊论文

作者Gao, Yingjie1,2; Zhang, Jinhai1,2; Yao, Zhenxing1,2
刊名JOURNAL OF COMPUTATIONAL PHYSICS
出版日期2019-11-15
卷号397页码:9
ISSN号0021-9991
关键词Explicit scheme Spatial filtering CFL stability limit Time-dispersion error Large time step
DOI10.1016/j.jcp.2019.07.051
英文摘要The explicit finite-difference scheme is widely used for solving the wave equation; however, its time step is strictly constrained by the Courant-Friedrichs-Lewy (CFL) stability limit. We apply spatial filtering to reduce the high-wavenumber noise caused by using a larger time step beyond the CFL stability limit. We further incorporate the forward and inverse time dispersion transforms to reduce the time-dispersion error. This method allows us to use a time step larger than the maximum time step allowed by the CFL stability limit. (C) 2019 Elsevier Inc. All rights reserved.
WOS关键词TIME DISPERSION
资助项目National Natural Science Foundation of China[41704063] ; National Major Project of China[2017ZX05008-007] ; China Postdoctoral Science Foundation[2017M610980] ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences[XDA15011700] ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences
WOS研究方向Computer Science ; Physics
语种英语
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号WOS:000486433900020
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; National Major Project of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Strategic Pioneer Program on Space Science, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences ; Foundation for Excellent Member of the Youth Innovation Promotion Association, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/93705]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Zhang, Jinhai
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Yingjie,Zhang, Jinhai,Yao, Zhenxing. Extending the stability limit of explicit scheme with spatial filtering for solving wave equations[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2019,397:9.
APA Gao, Yingjie,Zhang, Jinhai,&Yao, Zhenxing.(2019).Extending the stability limit of explicit scheme with spatial filtering for solving wave equations.JOURNAL OF COMPUTATIONAL PHYSICS,397,9.
MLA Gao, Yingjie,et al."Extending the stability limit of explicit scheme with spatial filtering for solving wave equations".JOURNAL OF COMPUTATIONAL PHYSICS 397(2019):9.

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来源：地质与地球物理研究所

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