| 颗粒流的动力学模型和实验研究进展 |
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| 引用本文： | 吴清松,胡茂彬. 颗粒流的动力学模型和实验研究进展[J]. 力学进展, 2002, 32(2): 250-258. DOI: 10.6052/1000-0992-2002-2-J2001-005 |
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| 作者姓名： | 吴清松 胡茂彬 |
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| 作者单位： | 合肥中国科学技术大学工程科学学院 |
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| 摘 要： | 首先叙述了颗粒流研究的背景和基本概念，接着概述了颗粒流动力学研究的三种基本数学力学模型:颗粒动理论(kinetic theory)模型、摩擦塑性模型和离散元模拟模型.介绍了它们的基本原理，并分析了各个模型的优缺点和适用范围.随之，对颗粒流的实验研究情况作了简要的介绍，列举了研究中几种常用的试验方法和观测手段，以及观测到的一些典型现象.最后，我们简述了颗粒流研究的主要困难，并提出了某些有待解决的研究课题.
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| 关 键 词： | 颗粒流 数学力学模型 动理论 双剪切 离散元 实验研究 |
| 修稿时间： | 2001-02-01 |
ADVANCES ON DYNAMIC MODELING AND EXPERIMENTAL STUDIES FOR GRANULAR FLOW |
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| Wu Qingsong Hu MaobinSchool of Engineering Science,University of Science and Technology of China,Hefei. ADVANCES ON DYNAMIC MODELING AND EXPERIMENTAL STUDIES FOR GRANULAR FLOW[J]. Advances in Mechanics, 2002, 32(2): 250-258. DOI: 10.6052/1000-0992-2002-2-J2001-005 |
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| Authors: | Wu Qingsong Hu MaobinSchool of Engineering Science University of Science Technology of China Hefei |
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| Affiliation: | Wu Qingsong Hu MaobinSchool of Engineering Science,University of Science and Technology of China,Hefei 230026 |
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| Abstract: | In this essay, we firstly introduce the background and basic conception of granularflow researches. Then we summarize three basic mathematical-mechanical models of granularflow dynamics: kinetic theory model, friction-plasticity model and discrete element simulationmodel. We give the basic ideas of these models and briefly analyze the merits, shortcomings andapplications of each model. Then we review some prevailing experimental and measuring methodsfor granular flows and some typical phenomena of granular flows. In the conclusion we sketch themain difficulties of granular flow researches and put forward some topics for further studies. |
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| Keywords: | granular flows mathematical-mechanical models kinetic theory double shearing discrete element experimental studies |
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