Evaluation of the u-W finite element method in anisotropic porous media
文献类型：期刊论文
| 作者 | Yang, Dinghui1; Liu, Enru2; Zhang, Zhongjie3 |
| 刊名 | JOURNAL OF SEISMIC EXPLORATION
 |
| 出版日期 | 2008-04-01 |
| 卷号 | 17期号:2-3页码:273-299 |
| 关键词 | anisotropic wave propagation finite element method porous media slow P-wave |
| ISSN号 | 0963-0651 |
| 文献子类 | Article |
| 英文摘要 | In this paper, we present dynamic equations of elastic wave propagations, the Galerkin variational equations, and the finite element equation in anisotropic porous media. We propose a finite element method based on solid displacements u and "relative fluid displacement" W to solve elastic equation which include both anisotropy of fluid micro-velocity field and Poiseuille macroscopic flow in two-phase anisotropic media. The artificial absorbing boundary conditions for porous VTI media (transversely isotropic medium with a vertical symmetry axis) are also given in this paper. Our numerical modeling results show that both the finite element method and the absorbing boundary conditions are effective and feasible. For the ideal (non-viscous fluid) phase boundary case, the slow quasi P-wave can be seen simultaneously from both solid/fluid wave-field snapshots, and for the viscous phase boundary case whether the slow quasi P-wave can be observed depends on the dissipative property of formations with fluids. The slow quasi P-wave is more easily observed from fluid displacement wave-fields than from the solid displacement wave-fields. |
| WOS关键词 | ONE-DIMENSIONAL MODELS ; WAVE-PROPAGATION ; ACOUSTIC PROPAGATION ; SIMULATION ; TIMES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000256224700013 |
| 出版者 | GEOPHYSICAL PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70146]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Yang, Dinghui |
| 作者单位 | 1.Tsinghua Univ, Dept Math Sci, Beijing 100084, Peoples R China 2.British Geol Survey, Murchison House, Edinburgh EH9 3LA, Midlothian, Scotland 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Dinghui,Liu, Enru,Zhang, Zhongjie. Evaluation of the u-W finite element method in anisotropic porous media[J]. JOURNAL OF SEISMIC EXPLORATION,2008,17(2-3):273-299. |
| APA | Yang, Dinghui,Liu, Enru,&Zhang, Zhongjie.(2008).Evaluation of the u-W finite element method in anisotropic porous media.JOURNAL OF SEISMIC EXPLORATION,17(2-3),273-299. |
| MLA | Yang, Dinghui,et al."Evaluation of the u-W finite element method in anisotropic porous media".JOURNAL OF SEISMIC EXPLORATION 17.2-3(2008):273-299. |
入库方式： OAI收割
来源：地质与地球物理研究所
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