计算物理 ›› 2008, Vol. 25 ›› Issue (2): 151-156.

• 研究论文 • 上一篇    下一篇

相变过程的格子Boltzmann方法模拟

赵凯, 李强, 宣益民   

  1. 南京理工大学 动力工程学院, 江苏 南京 210094
  • 收稿日期:2006-11-24 修回日期:2007-05-26 出版日期:2008-03-25 发布日期:2008-03-25
  • 作者简介:赵凯(1983-),男,江苏扬州,博士生,主要从事格子Boltzmann方法在多孔介质传热传质介观模拟方面的研究.
  • 基金资助:
    国家自然科学基金(No.50576038);南京理工大学青年学者基金(No.Njust200402)资助项目

Simulation of Phase Transition with Lattice Boltzmann Method

ZHAO Kai, LI Qiang, XUAN Yimin   

  1. School of Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
  • Received:2006-11-24 Revised:2007-05-26 Online:2008-03-25 Published:2008-03-25

摘要: 应用Shan提出的伪势多相模型替代R-K着色模型,建立一种新的描述气液相变过程的格子Boltzmann理论模型,模拟蒸发(高密度转化为低密度)过程.改进了计算效率,且得到较好的计算结果.同时应用该模型从孔隙尺度模拟了多孔介质中的相变现象,验证了该模型模拟复杂相变问题的可行性.

关键词: 相变, 多孔介质, 格子Boltzmann方法, 表面张力

Abstract: A lattice Bohzmann model is established to describe liquid-vapor phase transitions using a model proposed by Shan instead of the R-K model. Evaporation from a higher density phase to a lower density phase is simulated. The model improves calculation efficiency and obtains good results. The model is also used to simulate phase transitions in porous media with a pore scale to demonstrate feasibility of the model for complicate phase transition problems.

Key words: phase transition, porous medium, lattice Boltzmann method, surface tension

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