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多震源地震压力波的格子Boltzmann模型

张建影, 闫广武, 朴梓伟, 孙福振   

  1. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2006-08-02 修回日期:1900-01-01 出版日期:2007-05-26 发布日期:2007-05-26
  • 通讯作者: 闫广武

Lattice Boltzmann Model for the Multiseismic Resources Pressure Wave

ZHANG Jianying, YAN Guangwu, PIAO Ziwei, SUN Fuzhen   

  1. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2006-08-02 Revised:1900-01-01 Online:2007-05-26 Published:2007-05-26
  • Contact: YAN Guangwu

摘要: 给出一种新的用于模拟地震压力波的格子Boltzmann模型. 使用压力分布函数的ChapmanEnskog展开和多重尺度技术, 给出满足地震压力波方程要求的高阶矩以及简单的平衡态分布函数表达式. 利用这个模型, 模拟了多震源引起的地震压力波运动, 数值结果可以同差分方法的结果进行比较.

关键词: 格子Boltzmann模型, 地震压力波, 多震源

Abstract: A new lattice Boltzmann model was proposed for simulating the seismic pressure wave. Using ChapmanEnskog expansion and multi scale technique to the pressure distribution function, we obtained the moments of the seismic pressure wave equations and the distribution function. Using this model, we simulated the multiseismic pressure waves motion. These numerical results can be compared with the results simulated by the finite differential method.

Key words: lattice Boltzmann model, seismic pressure wave, multi seismic resources

中图分类号: 

  • O354