| 空调风管中细颗粒物受力机理研究 |
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| 引用本文： | 席志云,徐荣吉,王瑞祥. 空调风管中细颗粒物受力机理研究[J]. 北京建筑工程学院学报, 2015, 0(2): 49-54. DOI: 10.3969/j.issn.1004-6011.2015.02.010 |
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| 作者姓名： | 席志云 徐荣吉 王瑞祥 |
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| 作者单位： | 北京建筑大学 环境与能源工程学院 北京市建筑能源高效综合利用工程技术研究中心,北京,100044;北京建筑大学 环境与能源工程学院 北京市建筑能源高效综合利用工程技术研究中心,北京,100044;北京建筑大学 环境与能源工程学院 北京市建筑能源高效综合利用工程技术研究中心,北京,100044 |
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| 基金项目： | 北京市创新能力提升计划项目 |
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| 摘 要： | 对空调风管中的细颗粒物主要受力类型进行了梳理,发现主要作用力都与颗粒粒径相关,理论计算结果表明,曳力是湍流流场中细颗粒物的主要作用力,剪切升力和热泳力是近壁面区颗粒的重要作用力,高压静电场下细颗粒所受电场力成为主要作用力,库仑力和偶极子力在颗粒距离极近时发挥作用.
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| 关 键 词： | 空调风管 细颗粒物 湍流流场 静电场 受力 |
Research on Stress Mechanism of Fine Particulate Matter in Air Duct |
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| Xi Zhiyun,Xu Rongji,Wang Ruixiang. Research on Stress Mechanism of Fine Particulate Matter in Air Duct[J]. Journal of Beijing Institute of Civil Engineering and Architecture, 2015, 0(2): 49-54. DOI: 10.3969/j.issn.1004-6011.2015.02.010 |
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| Authors: | Xi Zhiyun Xu Rongji Wang Ruixiang |
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| Affiliation: | Xi Zhiyun;Xu Rongji;Wang Ruixiang;School of Environment and Energy Engineering,Beijing Engineering Research Center of Sustainable Energy and Buildings,Beijing University of Civil Engineering and Architecture; |
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| Abstract: | The main force type of fine particulate matter in air conditioning duct is generalized. It is found that they are all related to the size of particles, and theoretical force calculation has carried on along with the change of particle size for a single particle. The result shows that drag force is the domain force on particles in turbulent area, and the shear lift force and thermophoresis force are important forces of particles in near wall region. At the same time the electric field force becomes the main force on fine particles in duct under high voltage electrostatic field, and the coulomb force and dipole force will play an important role when particles are closed enough. |
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| Keywords: | conditioning dust fine particulate matter turbulent flow field electrostatic field stress analysis |
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