| 基于CFD的旋流器内流速特征的数值模拟(英文) |
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| 引用本文： | 高淑玲,魏德洲,刘文刚,马龙秋,卢涛,张瑞洋.基于CFD的旋流器内流速特征的数值模拟(英文)[J].中国有色金属学会会刊,2011(12):2783-2789. |
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| 作者姓名： | 高淑玲 魏德洲 刘文刚 马龙秋 卢涛 张瑞洋 |
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| 作者单位： | 东北大学资源与土木工程学院; |
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| 基金项目： | Project (50974033) supported by the National Natural Science Foundation of China; Project (N100301002) supported by the Fundamental Research Funds for the Universities, China |
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| 摘 要： | 为了查清旋流器内流速分布特征及其影响机理,在不同的结构参数和操作参数条件下,对旋流器内流速进行基于CFD方法的数值模拟。结果表明,在旋流器的内旋流和外旋流中均存在非对称的等轴向速度面,而且旋流器锥角和底流口直径对零轴向速度面锥底点的轴向空间位置具有显著的影响。另外,在旋流器有效分离区域内的水平面上存在切向速度的等值线。入口压强对轴向速度分布特征和切向速度分布特征的影响不显著,但可使切向速度及梯度明显增大,致使高密度颗粒向边壁的运动速度加快,从而使旋流分选的作用加强。
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| 关 键 词： | 数值模拟 旋流器 流速特征 结构参数 操作参数 旋流分选作用 |
CFD numerical simulation of flow velocity characteristics of hydrocyclone |
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| GAO Shu-ling,WEI De-zhou,LIU Wen-gang,MA Long-qiu,LU Tao,ZHANG Rui-yang College of Resources , Civil Engineering,Northeastern University,Shenyang ,China.CFD numerical simulation of flow velocity characteristics of hydrocyclone[J].Transactions of Nonferrous Metals Society of China,2011(12):2783-2789. |
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| Authors: | GAO Shu-ling WEI De-zhou LIU Wen-gang MA Long-qiu LU Tao ZHANG Rui-yang College of Resources Civil Engineering Northeastern University Shenyang China |
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| Affiliation: | GAO Shu-ling,WEI De-zhou,LIU Wen-gang,MA Long-qiu,LU Tao,ZHANG Rui-yang College of Resources and Civil Engineering,Northeastern University,Shenyang 110004,China |
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| Abstract: | A CFD based numerical simulation of flow velocity of hydrocyclone was conducted with different structural and operational parameters to investigate its distribution characteristics and influencing mechanism. The results show there exist several unsymmetrical envelopes of equal vertical velocities in both upward inner flows and downward outer flows in the hydrocyclone, and the cone angle and apex diameter have remarkable influence on the vertical location of the cone bottom of the envelope of zero vertical v... |
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| Keywords: | numerical simulation hydrocyclone flow velocity characteristics structural parameter operational parameter cyclonic separation effect |
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