| 超细分级机进料管内颗粒浓度分布特性的数值模拟 |
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| 引用本文： | 刁雄,李双跃,李良超,黄鹏.超细分级机进料管内颗粒浓度分布特性的数值模拟[J].过程工程学报,2011,11(5):729-735. |
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| 作者姓名： | 刁雄 李双跃 李良超 黄鹏 |
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| 作者单位： | 西南科技大学制造科学与工程学院,四川绵阳,621010 |
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| 基金项目： | 国家科技支撑计划基金资助项目(编号:2011BAA04B04) |
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| 摘 要： | 采用RNG k-ε湍流模型和随机轨道模型,对SCX超细分级机进料管内颗粒浓度分布进行了数值模拟,探讨了入口固体浓度、入口气速、粒径等的影响.结果表明,弯管出口附近颗粒浓度分布波动大,但在距弯管出口距离为6倍管径处波动趋于稳定.整个竖直段任意横截面可分为高浓度和低浓度区域,且两区的无因次半径(r/R)有一定范围:X方向低...
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| 关 键 词： | 超细分级机 进料管 颗粒浓度分布 数值模拟 RNG k-ε湍流模型 |
| 收稿时间： | 2011-8-30 |
| 修稿时间： | 2011-10-31 |
Numerical Simulation on Concentration Distribution of Particles in the Feeding Pipe of a Superfine Classifier |
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| DIAO Xiong,LI Shuang-yue,LI Liang-chao,HUANG Peng.Numerical Simulation on Concentration Distribution of Particles in the Feeding Pipe of a Superfine Classifier[J].Chinese Journal of Process Engineering,2011,11(5):729-735. |
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| Authors: | DIAO Xiong LI Shuang-yue LI Liang-chao HUANG Peng |
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| Affiliation: | DIAO Xiong,LI Shuang-yue,LI Liang-chao,HUANG Peng (School of Manufacturing Science and Engineering,Southwest Univ.Science & Technology,Mianyang,Sichuan 621010,China) |
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| Abstract: | RNG k-e turbulent model and the stochastic track model were respectively adopted to simulate the particle concentration distribution characteristics in the feeding pipe of a superfine classifier SCX.The effects of inlet solid concentration,inlet velocity and particle diameter on the concentration distribution of particles were analyzed.The results show that the distribution fluctuates significantly near the bending outlet,but it becomes more stable from the bending outlet of 6 times pipe diameter.The partic... |
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| Keywords: | superfine classifier feeding pipe particle concentration distribution numerical simulation RNG k-e turbulent model |
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