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格子Boltzmann方法中三维运动边界的统一模型
  • ISSN号：1001-246X
  • 期刊名称：《计算物理》
  • 时间：0
  • 分类：O35[理学—流体力学;理学—力学]
  • 作者机构：[1]浙江大学力学系,浙江杭州310027
  • 相关基金：国家自然科学基金重点项目（No.10632070）资助项目.
作者： 刘演华[1], 林建忠[1], 库晓珂[1]
关键词： 格子BOLTZMANN方法, 三维运动边界条件, 运动学格式, 顶盖驱动三维空腔流, lattice Boltzmann method, three-dimensional moving boundary condition, kinetic format, three-dimensional diagonal lid-driven cavity flow
中文摘要：

格子Boltzmann方法（LBM）中边界条件的处理很复杂,在现有的边界条件处理方法中,动力学格式能够精确满足宏观边界条件,但由于要解一个不定方程,必须引入附加假设确保方程非奇异.作为动力学格式和反弹格式的一种扩展,提出一种处理三维任意速度运动边界的统一模型,其中入口速度和固体壁面速度是该模型的特殊情形.给出用于三维15速度的表达式.为了检验该模型,模拟对角顶盖驱动三维空腔流,并将结果与有限差分法计算的结果进行比较,说明所提出的统一模型是合理可行的。

英文摘要：

A unified method is proposed to treat 3D moving boundaries at arbitrary velocity as an extension of kinetic format and bounce-back format. Velocities at inlet and on solid wall are special cases of the model. A simplified expression is given in a three dimensional 15-velocity model. Numerical simulation for a diagonally lid-driven three-dimensional cavity flow is performed to verify this scheme. Compared with finite difference method （FDM）, the proposed method proves reasonable.

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期刊信息
  • 《计算物理》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国核学会
  • 主编：朱少平
  • 地址：北京海淀区丰豪东路2号北京应用物理与计算数学研究所
  • 邮编：100094
  • 邮箱：jswl@iapcm.ac.cn
  • 电话：010-59872547 59872545 59872547
  • 国际标准刊号：ISSN：1001-246X
  • 国内统一刊号：ISSN：11-2011/O4
  • 邮发代号:2-477
  • 获奖情况:
  • 1992年获“全优期刊”奖,《CAJ-CD规范》执行优秀奖
  • 国内外数据库收录:
  • 荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:4426