| NUMERICAL SIMULATION OF PARTICLE MOTION IN TURBO CLASSIFIER |
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| 引用本文： | Ning xu Guohua Li Zhichu Huang. NUMERICAL SIMULATION OF PARTICLE MOTION IN TURBO CLASSIFIER[J]. 中国颗粒学报, 2005, 3(5): 275-278. DOI: 10.1016/S1672-2515(07)60201-2 |
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| 作者姓名： | Ning xu Guohua Li Zhichu Huang |
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| 作者单位： | [1]School of Mechanical and Electronical Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China [2]China Luoyang Float Glass Group Ltd. Liabifity Co., Luoyang 471009, R R. China |
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| 摘 要： | Research on the flow field inside a turbo classifier is complicated though important. According to the stochastic trajectory model of particles in gas-solid two-phase flow, and adopting the PHOENICS code, numerical simulation is carried out on the flow field, including particle trajectory, in the inner cavity of a turbo classifier, using both straight and backward crooked elbow blades. Computation results show that when the backward crooked elbow blades are used, the mixed stream that passes through the two blades produces a vortex in the positive direction which counteracts the attached vortex in the opposite direction due to the high-speed turbo rotation, making the flow steadier, thus improving both the grade efficiency and precision of the turbo classifier. This research provides positive theoretical evidences for designing sub-micron particle classifiers with high efficiency and accuracy.
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| 关 键 词： | 数字模拟 粒子运动 涡轮 粒子轨道 随机模型 |
| 收稿时间： | 2005-03-15 |
| 修稿时间： | 2005-03-152005-07-05 |
NUMERICAL SIMULATION OF PARTICLE MOTION IN TURBO CLASSIFIER |
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| Ning;xu;Guohua;Li;Zhichu;Huang. NUMERICAL SIMULATION OF PARTICLE MOTION IN TURBO CLASSIFIER[J]. China Particuology, 2005, 3(5): 275-278. DOI: 10.1016/S1672-2515(07)60201-2 |
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| Authors: | Ning xu Guohua Li Zhichu Huang |
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| Affiliation: | 1. Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China;2. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Research on the flow field inside a turbo classifier is complicated though important. According to the stochastic trajectory model of particles in gas-solid two-phase flow, and adopting the PHOENICS code, numerical simulation is carried out on the flow field, including particle trajectory, in the inner cavity of a turbo classifier, using both straight and backward crooked elbow blades. Computation results show that when the backward crooked elbow blades are used, the mixed stream that passes through the two blades produces a vortex in the positive direction which counteracts the attached vortex in the opposite direction due to the high-speed turbo rotation, making the flow steadier, thus improving both the grade efficiency and precision of the turbo classifier. This research provides positive theoretical evidences for designing sub-micron particle classifiers with high efficiency and accuracy. |
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| Keywords: | turbo classifier numerical simulation flow field particle trajectory |
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