| 粉尘在巷道中的紊流传递分析 |
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| 引用本文： | 徐竹云 王英敏. 粉尘在巷道中的紊流传递分析[J]. 中国安全科学学报, 1998, 8(5): 42-45 |
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| 作者姓名： | 徐竹云 王英敏 |
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| 作者单位： | 东北大学 |
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| 基金项目： | 辽宁省博士启动基金,国家教委博士点基金 |
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| 摘 要： | 建立的粉尘在巷道中的传递方程是一个二维平流扩散输运方程。在巷道顶底板为吸收壁的条件下,导出了粉尘浓度分布函数。传统的工业沉降室沉降效率公式（横向混合模型）只是论文所列方程的一个特例。降低紊流强度和减小紊流扩散系数和纵向弥散系数均可提高沉降效率
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| 关 键 词： | 紊流扩散 纵向弥散 浓度分布 |
Analysis on Motion and Deposition of Dust Particles in Mine Tunnels |
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| Xu ZhuyunAssoc. Prof. Wang YingminProf. Director of Doctor Program Wang ChunqiuM.SC. Lin XiuliM.SC.. Analysis on Motion and Deposition of Dust Particles in Mine Tunnels[J]. China Safety Science Journal, 1998, 8(5): 42-45 |
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| Authors: | Xu ZhuyunAssoc. Prof. Wang YingminProf. Director of Doctor Program Wang ChunqiuM.SC. Lin XiuliM.SC. |
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| Affiliation: | Northeastern University |
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| Abstract: | The transfer equation for dust given in this paper is a equation of two dimensional airflow diffusion transport.Assuming that the four walls of the tunnel are dust absorption walls,a dust concentration distribution function is found.Futhermore,a deposition efficiency formula is obtained,in which the vertical mixing-plug flow model is included.To decrease the value of some parameters such as turbulence intensity,vertical diffusion and longitudinal dispersion coefficients could increase the deposition efficiency of dust particles. |
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| Keywords: | Turbulence dispersion Concentration distribution Deposition efficiency |
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