吉首大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (6): 24-34.DOI: 10.13438/j.cnki.jdzk.2025.06.004

• 数学 • 上一篇    下一篇

广义BBM-KdV方程的格子Boltzmann方法求解

赵孟孟,戴厚平,董亚茹   

  1. (吉首大学数学与统计学院,湖南 吉首 416000)
  • 出版日期:2025-11-25 发布日期:2025-12-17
  • 作者简介:赵孟孟(2000—),女,河南洛阳人,吉首大学数学与统计学院硕士研究生,主要从事微分方程数值解研究

Lattice Boltzmann Method for Solving the Generalized BBM-KdV Equation

ZHAO Mengmeng,DAI Houping,DONG Yaru   

  1. (College of Mathematics and Statistics,Jishou University,Jishou 416000,Hunan China)
  • Online:2025-11-25 Published:2025-12-17

摘要:针对含有混合偏导数项的广义BBM-KdV方程,基于格子Boltzmann方法,利用Taylor展开和Chapman-Enskog多尺度展开技术,得到了一维、二维广义BBM-KdV方程在各个方向上的局部平衡态分布函数和修正函数,进而恢复出一维、二维广义BBM-KdV方程.在满足单调性条件的基础上,证明了格子Boltzmann方法的迭代格式是稳定的.

关键词:  , 广义BBM-KdV方程, 格子Boltzmann方法, Taylor展开, Chapman-Enskog多尺度展开

Abstract: For the generalized BBM-KdV equation with mixed derivative terms,based on the lattice Boltzmann method,by using Taylor expansion and Chapman-Enskog multiscale expansion technique,the local equilibrium distribution functions and correction functions in each direction of the one-dimensional and two-dimensional generalized BBM-KdV equations are obtained,and then the one-dimensional and two-dimensional generalized BBM-KdV equations are restored.Under the condition of monotonicity,the stability of the iterative format of the lattice Boltzmann method is proved.

Key words: generalized BBM-KdV equation, lattice Boltzmann method, Taylor expansion, Chapman-Enskog multiscale expansion

公众号 电子书橱 超星期刊 手机浏览 在线QQ