A temporal fourth-order scheme for the first-order acoustic wave equations
文献类型：期刊论文
| 作者 | Long Guihua; Zhao Yubo; Zou Jun |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2013 |
| 英文摘要 | In this paper, we propose a temporal fourth-order scheme for solving the 2-D first-order acoustic wave equations with perfectly matched layers in time domain. For the temporal discretization, we approximate the velocity at mid-points and the pressure at grid points, then expand the velocity and pressure by Taylor series and replace the high-order temporal derivatives by spatial derivatives. For the spatial discretization, we apply the Fourier pseudospectral method based on conventional and staggered-grid schemes. The dispersion and stability of the new scheme are analysed, and numerical simulations are presented to confirm the robustness and efficiency of the scheme. The new scheme is eventually applied for the wavefield modelling and reverse time migration in bilayered and heterogeneous media to further verify its accuracy and efficiency. |
| 收录类别 | SCI |
| 原文出处 | http://gji.oxfordjournals.org/content/194/3/1473 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5063]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | GEOPHYSICAL JOURNAL INTERNATIONAL |
| 推荐引用方式 GB/T 7714 | Long Guihua,Zhao Yubo,Zou Jun. A temporal fourth-order scheme for the first-order acoustic wave equations[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2013. |
| APA | Long Guihua,Zhao Yubo,&Zou Jun.(2013).A temporal fourth-order scheme for the first-order acoustic wave equations.GEOPHYSICAL JOURNAL INTERNATIONAL. |
| MLA | Long Guihua,et al."A temporal fourth-order scheme for the first-order acoustic wave equations".GEOPHYSICAL JOURNAL INTERNATIONAL (2013). |
入库方式： OAI收割
来源：深圳先进技术研究院
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