吉林大学学报(理学版)

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求解Rossler方程的格子Runge-Kutta-Boltzmann算法

闫铂1,2, 王建朝1,2, 闫广武3   

  1. 1. 吉林建筑大学 土木工程学院, 长春 130118; 2. 吉林省结构与抗震科技创新中心, 长春 130118;3. 吉林大学 数学学院, 长春 130012
  • 收稿日期:2017-02-23 出版日期:2017-09-26 发布日期:2017-09-26
  • 通讯作者: 闫广武 E-mail:yangw_jlu@126.com

Lattice Runge-Kutta-Boltzmann Algorithm forSolving Rossler Equations

YAN Bo1,2, WANG Jianchao1,2, YAN Guangwu3   

  1. 1. College of Civil Engineering, Jilin Jianzhu University, Changchun 130118, China;2. Jilin Structure and Earthquake Resistance Technology Innovation Center, Changchun 130118, China;3. College of Mathematics, Jilin University, Changchun 130012, China
  • Received:2017-02-23 Online:2017-09-26 Published:2017-09-26
  • Contact: YAN Guangwu E-mail:yangw_jlu@126.com

摘要: 提出一种求解Rossler方程的格子Runge-Kutta-Boltzmann算法. 先使用经典Runge-Kutta公式构建格子Boltzmann模型, 得到了高阶截断误差; 再通过Chapmann-Enskog展开和多尺度展开技术, 获得了不同时间尺度的系列偏微分方程和修正Rssler方程. 数值结果表明, 所得模型可用于求解Rossler方程.

关键词: 格子Boltzmann模型, Runge-Kutta公式, Rossler方程

Abstract: We proposed a lattice Runge-Kutta-Boltzmann algorithm for solving the Rossler equations. First,  the classical Runge-Kutta formula was used to construct the lattice Boltzmann model, and we obtained higherorder  truncation error. By using the ChapmanEnskog expansion and multiscale expansion technique, we obtained a series of partial differential equations in different time scales and modified Rssler equations. The numerical results show that the obtained model  can be used to solve  the Rossler equations.

Key words: lattice Boltzmann model, Runge-Kutta formula, Rossler equation

中图分类号: 

  • O351.2