计算物理 ›› 2010, Vol. 27 ›› Issue (5): 699-704.

• 研究论文 • 上一篇    下一篇

应用于非线性热传导方程的格子玻尔兹曼方法

张东辉1, 刘方贵2, 张金存3, 芮孝芳4   

  1. 1. 江苏科技大学, 船舶与海洋学院, 江苏 镇江 212003;
    2. 广西大学, 土木建筑学院, 广西 南宁 530004;
    3. 山东大学, 土木建筑学院, 山东 济南 250061;
    4. 河海大学, 水文水资源学院, 江苏 南京 210098
  • 收稿日期:2009-08-26 修回日期:2009-11-16 出版日期:2010-09-25 发布日期:2010-09-25
  • 作者简介:张东辉(1970-),男,江苏,博士,主要从事传热传质学研究
  • 基金资助:
    国家自然科学基金(50609005)资助项目

Nonlinear Heat Conduction Equation Solved with Lattice Boltzmann Method

ZHANG Donghui1, LIU Fanggui2, ZHANG Jincun3, RUI Xiaofang4   

  1. 1. Jiangsu University of Science & Technology, School of Naval Architecture & Ocean Engineering, Zhenjiang 212003, China;
    2. Guangxi University, School of Civil Engineering, Nanning 530004, China;
    3. Shandong University, School of Civil Engineering, Jinan 250061, China;
    4. Hohai University, College of Water Resource and Enviroment, Nanjing 210098, China
  • Received:2009-08-26 Revised:2009-11-16 Online:2010-09-25 Published:2010-09-25

摘要: 将格子玻尔兹曼方法应用于非线性热传导方程的求解,详细推导一种新的Lattice Boltzmann模型,并给出新方法所对应的多尺度方案和宏观量形式.导热系数与温度之间满足多项式函数关系,计算中模拟了不同的参数情况,并与线性热传导方程的理论解进行比较.新的Lattice Boltzmann方法展现出极大的灵活性和普适性,具有很好的应用前景.

关键词: 格子玻尔兹曼方法, 非线性, 热传导方程

Abstract: Lattice Boltzmann method is employed to study nonlinear heat conduction problems.A kind of lattice Boltzmann model is derived in details and multi-scale algorithm and macroscopic quantity are selected.It is proposed to solve transient responses of nonlinear heat conduction problems.The relation between heat conductivity and temperature meets the multi-polynomial function.Different parameters are considered to verify feasibility of the proposed method.Simulation results are illustrated with comparison in linear case.

Key words: lattice Boltzmann method, nonlinear, heat conduction equation

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