| CFD模拟旋风分离器自然旋风长 |
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| 引用本文： | 杜德喜,朱丽娟,董秀奇.CFD模拟旋风分离器自然旋风长[J].矿山机械,2007,35(4):94-96. |
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| 作者姓名： | 杜德喜 朱丽娟 董秀奇 |
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| 作者单位： | 沈阳理工大学材料学院,辽宁沈阳110168 |
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| 摘 要： | 利用计算流体力学软件Flowizard对不同结构尺寸的旋风分离器气相流场进行数值模拟采用分离器锥体段中心湍动能峰值定位自然旋风长的方法，分析了入口面积、芯管下口直径、下溢口直径和锥体段长度对自然旋风长的影响。拓展了分离器内部流场由多个自然转折旋风串联的概念。通过增加锥体段长度和入口风速来实现旋风串联、多级分离的效果，延长自然旋风长，有益于提高分离效率。
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| 关 键 词： | 旋风分离器 自然旋风长 CFD 湍动能 |
| 文章编号： | 1001-3954（2007）04-0094-096 |
| 修稿时间： | 2006-12-142007-01-25 |
Simulation to the Length of the Natural Vortex in Cyclone Separator with CFD |
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| DU DeXi et al..Simulation to the Length of the Natural Vortex in Cyclone Separator with CFD[J].Mining & Processing Equipment,2007,35(4):94-96. |
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| Authors: | DU DeXi |
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| Affiliation: | DU DeXi et al. |
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| Abstract: | The paper makes the numerical simulation to gaseous flow field of cyclone separator with different structural dimension by liquid kinetic software FloWizard, determines the length of natural vortex with maximum of turbulence kinetic energy on the center of cone segment in cyclone separator, and analyses the influence of inlet area, overflow diameter, underflow diameter and length of cone segment on the length of natural vortex. It also introduces the conception that the inner flow field of cyclone separator consists of several tandem natural turning vortex, the tandem vortex and multi-grade separation is realized by lengthening the cone and increasing the wind velocity of inlet, thus the natural vortex lengthens, which benefit to increase the separating efficiency. |
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| Keywords: | Cyclone separator Length of the natural vortex CFD Turbulence energy |
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