吉林大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (增刊2): 341-0343.

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Lattice Boltzmann model for multi-seismic resources pressure wave in isotropic medium

SONG Min1|2, JIANG Ping 2,YAN Guang-wu 3   

  1. 1.Institute of Civil and Engineering| Beijing Jiaotong University,Beijing 100044,China|2.Civil and Engineering Institute, Jilin Architectural Civil and Engineering Institute,Changchun 130021,China|3.College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2009-04-24 Online:2009-09-30 Published:2009-09-30

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Abstract:

A new lattice Boltzmann model for simulating the seismic pressure wave is proposed. By using the ChapmanEnskog expansion and multiscales technique to the pressure distribution function, we obtained the moments of the distribution function of the seismic pressure wave equations. Using this model, we simulated the pressure wave motion caused by the multi-seismic source in the isotropic medium and single seismic source in two isotropic media with difference parameters. These numerical results reproduce the classical numerical results. By comparison between these results and results of the finite difference method, we find that the numerical results agree well with the finite difference method ones.

Key words: engineering mechanics, lattice Boltzmann method, isotropic medium, seismic pressure wave

CLC Number: 

  • O354
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