A new splitting PML algorithm for the second-order anisotropic wave equation

被引：0
|
作者：
Hao, Qi [1 ]
He, Qiao-Deng [1 ]
Shi, Shuanghu [1 ]
机构：
[1] Jilin Univ, Coll Geoexplorat Sci & Technol, Changchun 130026, Peoples R China
来源：
JOURNAL OF SEISMIC EXPLORATION | 2008年 / 17卷 / 2-3期
关键词：
splitting PML; second-order; wave equation; pseudo-spectral;
D O I：
暂无
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
In this paper, we present a new absorbing boundary conditions called splitting perfectly matched layer (SPML) for the second-order anisotropic wave equation. The new SPML can be used in the pseudo-spectral, finite-difference, and finite-element forward modeling to effectively attenuate unwanted reflections from artificial boundaries. It is written in a compact form as the original first-order PML. We have applied the new SPML algorithm to simulate anisotropic wave propagation based on the second-order wave equation. The numerical modelling results show that the new SPML can absorb artificial boundary reflected waves significantly and is numerically stable.
引用
收藏
页码：229 / 236
页数：8
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