摘要
格子玻尔兹曼模拟方法(Lattice Boltzmann Method,LBM)被广泛应用于流体力学问题的研究中,本文采用LBM方法对牛顿流体和非牛顿流体的泊肃叶流动进行了模拟,还通过模拟圆柱绕流问题演示了层流和湍流现象并阐明了雷诺数的概念.将LBM模拟结果与大学物理的相关流体力学知识相联系,不仅可以直观地解释抽象的流体力学概念,而且能够培养学生采用计算物理学手段解决实际问题的思维方式.
Lattice Boltzmann method（LBM）has been widely applied to study some issues on fluid mechanic.In this paper,the Poiseuille flows of Newtonian fluid and non Newtonian fluid are simulated by LBM. Both laminar flow and turbulent flow are shown in the simulation of flow past cylinder and then the physical concept of Reynolds number is clarified. By combining simulated results with some knowledge of fluid mechanics in college physics,it can not only explain physical concepts on fluid mechanics intuitively,but also guide students to use the method of computation physics to solve problems.
出处
《大学物理》
北大核心
2016年第10期17-19,34,共4页
College Physics
基金
重庆理工大学高等教育教学改革研究项目(2013YB34
2014ZD05)
重庆理工大学科研启动基金项目(2012ZD29)资助
重庆市教委科学技术研究项目(KJ1400921)
关键词
计算机模拟
牛顿流体
非牛顿流体
层流
湍流
computer simulation
Newtonian fluid
non Newtonian fluid
laminar flow
turbulent flow
