室内细颗粒物碰撞模型及碰撞结果讨论

王秀娟; 李灿

doi:10.21656/1000-0887.360349

室内细颗粒物碰撞模型及碰撞结果讨论

doi: 10.21656/1000-0887.360349

王秀娟,
李灿

湖南工业大学土木工程学院, 湖南株洲 412007

基金项目: 国家自然科学基金（51246008）

详细信息

作者简介:
王秀娟（1991—），女，硕士生(E-mail: annewxj@163.com);李灿（1968—），女，教授，博士(通讯作者. E-mail: lc19992@126.com).

中图分类号: X513;O359
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- 被引次数: 0
出版历程
- 收稿日期: 2015-12-16
- 修回日期: 2016-02-23
- 刊出日期: 2016-07-15

The Collision Model for Indoor Fine Particles and the Collision Results

School of Civil Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, P.R.China

Funds: The National Natural Science Foundation of China（51246008）

摘要

摘要: 为了研究室内细颗粒物凝并机理，基于统计平均及颗粒物随机运动的思想对室内细颗粒物碰壁数和细颗粒物之间发生对心碰撞的概率进行了总结计算，并对碰撞之后的结果进行了定量和定性的分析，得到了0.3 μm的DOP颗粒的最终压缩变形与碰撞发生初始速度以及碰撞效率随粒径变化曲线.颗粒物碰撞后凝并的可能性会随着颗粒碰撞初速度的增加而降低，小粒径颗粒发生碰撞后凝并的可能性一般会大于大粒径颗粒，碰撞效率随粒径的增大而减小.
- 细颗粒物 /
- 碰撞概率 /
- 凝并
Abstract: In order to study the coagulation mechanism for indoor fine particles, the number of particles colliding with walls and the collision probability between particles were calculated based on the idea of statistical mean and random motion of particles. The collision results were also studied with the qualitative and quantitative analysis methods. The relationship between the final compressive deformation and the initial velocity, and that between the collision efficiency and the particle diameter, were obtained for 0.3 μm DOP particles. The results show that the coagulation possibility of particles decreases with the particle velocity, the finer particles are easier to coagulate after collision, and the collision efficiency increases with the particle diameter.
- fine particle /
- collision probability /
- coagulation

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参考文献(18)

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