| 转速对三维滚筒内颗粒混合特性的影响 |
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| 作者姓名： | 张紫薇 葛良 桂南 李振林 杨阳 |
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| 作者单位： | 1.中国石油大学(北京)机械与储运工程学院, 北京 102249;2.清华大学核能与新能源技术研究院, 北京 100084 |
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| 基金项目： | 高等学校全国优秀博士学位论文作者专项资金（201438）资助 |
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| 摘 要： | 借助开源软件OpenFOAM中的离散元方法软球模型，分别模拟5种典型转速下三维滚筒内的碳球颗粒混合过程。分析研究滚筒内颗粒流态随时间的演化过程，展示不同颗粒流态下的颗粒混合结构特性。借助信息熵和新的混合指数，即差值函数，定量地研究滚筒转速对颗粒混合特性的影响。
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| 关 键 词： | 滚筒 颗粒 混合 离散元方法 信息熵 |
| 收稿时间： | 2016-04-15 |
| 修稿时间： | 2016-10-17 |
Influence of rotating velocity on particle mixing characteristics in a three-dimensional tumbler |
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| Authors: | ZHANG Ziwei GE Liang GUI Nan LI Zhenlin YANG Yang |
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| Institution: | 1.College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China;2.Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China |
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| Abstract: | The mixing processes of carbon spherical particles in 3-D tumbler at five typical rotating speeds are simulated by using the open source software OpenFOAM utilizing soft sphere model of discrete element method. The evolution of particle mixing is investigated, and the structural characteristics of particle mixing in different regimes are illustrated. Moreover, with the help of the information entropy and a series of new mixing indexes, which are the difference value functions, we quantitatively analyze the influence of rotating velocity on particle mixing characteristics. |
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| Keywords: | rotating drum particle mixing discrete element method information entropy |
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