A perfectly matched layer absorbing boundary condition for the second-order seismic wave equation

被引：396

作者：

Komatitsch, D ^{[1
]}

Tromp, J ^{[1
]}

机构：

[1] CALTECH, Seismol Lab, Pasadena, CA 91125 USA

来源：

GEOPHYSICAL JOURNAL INTERNATIONAL | 2003年 / 154卷 / 01期

关键词：

absorbing conditions; elastic waves; perfectly matched layer; seismic modelling; seismic wave propagation; surface waves;

D O I：

10.1046/j.1365-246X.2003.01950.x

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：

The perfectly matched layer absorbing boundary condition has proven to be very efficient for the elastic wave equation written as a first-order system in velocity and stress. We demonstrate how to use this condition for the same equation written as a second-order system in displacement. This facilitates use in the context of numerical schemes based upon such a system, e.g. the finite-element method, the spectral-element method and some finite-difference methods. We illustrate the efficiency of this second-order perfectly matched layer based upon 2-D benchmarks with body and surface waves.

引用

页码：146 / 153

页数：8

共 38 条

[21] ABSORBING BOUNDARY-CONDITIONS FOR ELASTIC-WAVES [J].