任意流场中稀疏颗粒运动方程及其性质

黄社华; 李炜; 程良骏

任意流场中稀疏颗粒运动方程及其性质

1.
武汉水利电力大学河流系, 武汉 430000;
2.
北京大学湍流国家重点实验室, 北京 100871;
3.
华中理工大学动力系, 武汉 430000

基金项目: 国家自然科学基金资助项目(59709007);博士后科学基金资助项目

详细信息

作者简介:
黄社华(1964～ ),男,博士,副教授,研究方向:流体力学等,已发表论文16篇.

中图分类号: O359
计量
- 文章访问数: 2300
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- 被引次数: 0
出版历程
- 收稿日期: 1998-07-13
- 修回日期: 1999-07-20
- 刊出日期: 2000-03-15

On Equation of Discrete Solid Particles’ Motion in Arbitrary Flow Field and Its Properties

1.
Wuhan University of Hydraulic and Electric Engineering, Wuhan 430000, P R China;
2.
State Koy Lab for Turbulence Researcch, Peking University, Beijing 100871, P R China;
3.
Huazhong University of Science and Technology, Wuhan 430000, P R China

摘要

摘要: 通过研究和比较稀疏刚性颗粒相对流体运动时所受到的各种作用力,并考虑在不同流动条件下各作用力的修正问题从而得到了任意流场中稀疏颗粒运动方程的一般形式;然后分析了该方程的数学性质,采用积分变换方法(Laplace变换)对该方程的基本形式进行了理论解析;最后探讨了颗粒物理性质对其运动规律的影响,以及几种典型流场中稀疏颗粒的运动特性,得到了一些有意义的结论。
- 两相流 /
- 粒子运动方程 /
- 稀疏颗粒 /
- 积分变换分析
Abstract: The forces on rigid particles moving in relation to fluid having been studied and the equation of modifications of their expressions under different flow conditions discussed, a general form of equation for discrete particles' motion in arbitrary flow field is obtained. The mathematical features of the linear form of the equation are clarified and analytical solution of the linearized equation is gotten by means of Laplace transform. According to above theoretical results, the effects of particles' properties on its motion in several typical flow field are studied, with some meaningful conclusions being reached.
- solid liquid two phase flow /
- discrete particles' motion equation /
- discrete solid porticles /
- Laplace transform

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参考文献(26)

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