| 颗粒流的离散元法模拟及其进展 |
| |
| 引用本文： | 杨洋,唐寿高.颗粒流的离散元法模拟及其进展[J].中国粉体技术,2006,12(5):38-43. |
| |
| 作者姓名： | 杨洋 唐寿高 |
| |
| 作者单位： | 同济大学,航空航天与力学学院,上海,200092 |
| |
| 摘 要： | 颗粒流问题是众多工农业生产领域中的常见问题,然而人们至今对颗粒流机理认识不深。目前一种基于离散元的数值模拟方法被用以模拟和分析颗粒流问题,研究实践表明该方法是散体力学分析的一种有效的工具。本文介绍了颗粒流研究的背景以及离散元法的发展过程,概述了颗粒流动力学研究的动理论模型和摩擦塑性模型,综述了离散元法的理论和各种颗粒作用模型及其在粉体工程领域的应用,讨论了颗粒流研究的主要困难和离散元法发展中亟待解决的问题。
|
| 关 键 词： | 颗粒流 数值模拟 离散元法 |
| 文章编号： | 1008-5548（2006）05-0038-06 |
| 收稿时间： | 2005-12-20 |
| 修稿时间： | 2006-03-09 |
Discrete Element Method Simulation of Granular Flow and Its Advances |
| |
| YANG Yang,TANG Shou-gao.Discrete Element Method Simulation of Granular Flow and Its Advances[J].China Powder Science and Technology,2006,12(5):38-43. |
| |
| Authors: | YANG Yang TANG Shou-gao |
| |
| Affiliation: | School of Aerospace Engineering and Applied Mechanics Tongji University, Shanghai 200092, China |
| |
| Abstract: | Granular flow problems are very common in many agricultural and industrial areas,but still people don't know the mechanism of granular flow quite well.Nowadays a numerical simulation method which is based on discrete element is applied in simulating and analysing granular flow problems.The research practices indicate this method is a useful implement in granular mechanics analysis.The background of granular flow researches,and the development of the discrete element method are introduced.The kinetic theory model and the friction-plasticity model of granular flow dynamics researches are summarized.The theory of the discrete element method and various models of particle interaction,as well as the applications of the discrete element method in area of powder engineering are briefly described.Finally the main difficulties in granular flow researches and the future research topics in the discrete element method are discussed. |
| |
| Keywords: | granular flow numerical simulation discrete element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
