力学与实践 ›› 2010, Vol. 32 ›› Issue (2): 1-8.DOI: 10.6052/1000-0879-2010-037

• 专题综述 •    下一篇

波传播计算中的人工边界条件

唐少强 王贤明   

  1. 北京大学力学与工程科学系
  • 收稿日期:2010-01-26 修回日期:2010-02-23 出版日期:2010-04-08 发布日期:2010-04-08

ARTIFICIAL BOUNDARY CONDITIONS FOR WAVE PROPAGATION SIMU LATIONS

  • Received:2010-01-26 Revised:2010-02-23 Online:2010-04-08 Published:2010-04-08

摘要: 对无限介质中波传播进行有界区域近似计算时,需要提出人工边界条件. 本文分别就连续介质和离散晶格简要介绍一些典型的人工边界条件,包括精确 人工边界条件和局部人工边界条件.

关键词: 波传播,人工边界条件,连续介质,离散晶格

Abstract: Artificial boundary conditions are necessary in finite domain approximations of wave propagation simulations over an infinite medium. In this survey, we briefly introduce some typical conditions for continua and lattices, including exact artificial boundary conditions and local approximate ones.

Key words: wave propagation, artificial boundary condition,