An optimal method for a staggered-grid finite-difference solution of elastic wave equations including rotational deformation
文献类型：期刊论文
| 作者 | Wang,Zhiyang3; Bai,Wenlei3; Li,Youming1,2; Liu,Hong1,2; Chen,Chaopu3 |
| 刊名 | IOP Conference Series: Earth and Environmental Science
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 660期号:1 |
| ISSN号 | 1755-1307 |
| DOI | 10.1088/1755-1315/660/1/012141 |
| 英文摘要 | Abstract The staggered-grid finite-difference (SGFD) method is one of the most popular means used in seismic numerical modelling because of its computational efficiency and it is easy to implement. However, it will lead to serious numerical errors while using coarse grids or wavelet with high-frequency. In this work, we proposed an optimal spatial SGFD method based on a new improved particle swarm optimization (PSO) algorithm. Then the dispersion of numerical solution of the first-order spatial derivatives is analyzed. Meanwhile, numerical modelling of elastic wave equations and elastic wave equations including rotational deformation are performed with the optimal spatial SGFD method based on the improved PSO algorithm. Numerical dispersion analysis and numerical modeling results indicate that the optimal spatial SGFD method based on the improved PSO algorithm has high modeling accuracy and can efficiently suppress the numerical dispersion. |
| 语种 | 英语 |
| WOS记录号 | IOP:1755-1307-660-1-012141 |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98782]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing, PRC 2.Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, PRC 3.College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, PRC |
| 推荐引用方式 GB/T 7714 | Wang,Zhiyang,Bai,Wenlei,Li,Youming,et al. An optimal method for a staggered-grid finite-difference solution of elastic wave equations including rotational deformation[J]. IOP Conference Series: Earth and Environmental Science,2021,660(1). |
| APA | Wang,Zhiyang,Bai,Wenlei,Li,Youming,Liu,Hong,&Chen,Chaopu.(2021).An optimal method for a staggered-grid finite-difference solution of elastic wave equations including rotational deformation.IOP Conference Series: Earth and Environmental Science,660(1). |
| MLA | Wang,Zhiyang,et al."An optimal method for a staggered-grid finite-difference solution of elastic wave equations including rotational deformation".IOP Conference Series: Earth and Environmental Science 660.1(2021). |
入库方式： OAI收割
来源：地质与地球物理研究所
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