A meshless method for acoustic and elastic modeling

被引：1
|
作者：
Xiaofeng Jia
Tianyue Hu
Runqiu Wang
机构：
[1] Peking University,School of Earth and Space Sciences
[2] University of Petroleum,School of Resources and Information Technology
来源：
Applied Geophysics | 2005年 / 2卷 / 1期
关键词：
wave equation; element-free-method; absorbing boundary condition; seismic modeling; and elastic wave;
D O I：
10.1007/s11770-005-0001-0
中图分类号：
学科分类号：
摘要：
Wave equation method is one of the fundamental techniques for seismic modeling and imaging. In this paper the element-free-method (EFM) was used to solve acoustic and elastic equations. The key point of this method is no need of elements, which makes nodes free from the elemental restraint. Besides, the moving-least-squares (MLS) criterion in EFM leads to a high accuracy and smooth derivatives. The theories of EFM for both acoustic and elastic wave equations as well as absorbing boundary conditions were discussed respectively. Furthermore, some pre-stack models were used to show the good performance of EFM in seismic modeling.
引用
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页码：1 / 6
页数：5
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