计算物理 ›› 2012, Vol. 29 ›› Issue (6): 799-806.

• 论文 • 上一篇    下一篇

格子Boltzmann方法中三种流固耦合格式的对比

黄荣宗1,2, 王亮2, 郭照立2   

  1. 1. 上海交通大学动力机械与工程教育部重点实验室, 上海 200240;
    2. 华中科技大学煤燃烧国家重点实验室, 武汉 430074
  • 收稿日期:2012-03-01 修回日期:2012-06-01 出版日期:2012-11-25 发布日期:2012-11-25
  • 通讯作者: 郭照立,E-mail:zlguo@hust.edu.cn
  • 作者简介:黄荣宗(1988-),男,硕士生,主要从事多相流研究,E-mail:bqhrz@sjtu.edu.cn
  • 基金资助:
    自然科学基金(50936001)资助项目

Three Boundary Particulate Flows in Treatment Schemes for Lattice Boltzmann Method

HUANG Rongzong1,2, WANG Liang2, GUO Zhaoli2   

  1. 1. Ministry of Education Key Laboratory of Power and Machinery, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2012-03-01 Revised:2012-06-01 Online:2012-11-25 Published:2012-11-25

摘要: 详细对比分析模拟流固两相流的格子Boltzmann方法中三类不同的流固耦合格式(半反弹方法、亚网格方法和曲边界方法)的特点,发现半反弹方法所获得的速度、角速度存在较大的扰动,而亚网格颗粒方法则能够获得平滑的发展曲线.

关键词: 流固两相流, 格子Boltzmann方法, 半反弹方法, 亚网格方法, 曲边界方法

Abstract: A detailed comparative study is made to investigate three boundary treatment schemes in lattice Bohzmann methods (LBM).They are half-way bounce back scheme,sub-grid scheme,and a scheme to treat curved boundaries.It is found that particle translational and angular velocities calculated with half-way bounce back scheme oscillate strongly,while particle velocities obtained by sub-grid scheme evolve smoothly.

Key words: particulate flows, lattice Bohzmann rfiethod, half-way bounce back scheme, sub-grid scheme, curved boundary

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