The Collision Model for Indoor Fine Particles and the Collision Results

WANG Xiu-juan; LI Can

doi:10.21656/1000-0887.360349

Volume 37 Issue 7

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WANG Xiu-juan, LI Can. The Collision Model for Indoor Fine Particles and the Collision Results[J]. Applied Mathematics and Mechanics, 2016, 37(7): 766-774. doi: 10.21656/1000-0887.360349

Citation:

WANG Xiu-juan, LI Can. The Collision Model for Indoor Fine Particles and the Collision Results[J]. Applied Mathematics and Mechanics, 2016, 37(7): 766-774. doi: 10.21656/1000-0887.360349

Citation:

WANG Xiu-juan, LI Can. The Collision Model for Indoor Fine Particles and the Collision Results[J]. Applied Mathematics and Mechanics, 2016, 37(7): 766-774. doi: 10.21656/1000-0887.360349

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The Collision Model for Indoor Fine Particles and the Collision Results

doi: 10.21656/1000-0887.360349

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

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

Received Date: 2015-12-16
Rev Recd Date: 2016-02-23
Publish Date: 2016-07-15

Abstract

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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References(18)

References

[1]	陈林烽. 热剪切湍流中微细颗粒输运特性的大涡模拟研究[D]. 硕士学位论文. 上海: 上海大学, 2011.(CHEN Lin-feng. An investigation on particle motion in the stratified turbulence by LES[D]. Master Thesis. Shanghai: Shanghai University, 2011.(in Chinese))
[2]	Kitron A, Elperin T, Tamir A. Monte Carlo simulation of gas-solids suspension flows in impinging streams reactors[J]. International Journal of Multiphase Flow,1990,16(1): 1-17.
[3]	Lun C K K, Savage S B. A simple kinetic theory for granular flow of rough, inelastic, spherical particles[J]. Journal of Applied Mechanics,1987,54(1): 47-53.
[4]	Tanaka T, Tsuji Y. Numerical simulation of gas-solid two-phase flow in a vertical pipe: on the effect of particle-to-particle collision[J]. Transactions of the Japan Society of Mechanical Engineers B,1990,56(1): 3210-3216.
[5]	Oesterle B, Petitjean A. Simulation of particle-to-particle interactions in gas solid flows[J]. International Journal of Multiphase Flow,1993,19(1): 199-211.
[6]	王玉明, 林建忠. Brown凝并中两个不同直径纳米颗粒的碰撞系数[J]. 应用数学和力学, 2011,32(8): 956-963.(WANG Yu-ming, LIN Jian-zhong. Collision efficiency of two nanoparticles with different diameters in the Brownian coagulation[J]. Applied Mathematics and Mechanics,2011,32(8): 956-963.(in Chinese))
[7]	陈忠利, 游振江. 球形纳米颗粒Brown凝并碰撞效率的新表达式[J]. 应用数学和力学, 2010,31(7): 812-821.(CHEN Zhong-li, YOU Zhen-jiang. New expression for collision efficiency of spherical nanoparticles in Brownian coagulation[J]. Applied Mathematics and Mechanics,2010,31(7):812-821.(in Chinese))
[8]	樊建人, 姚军, 张新育, 岑可法. 气固两相流中颗粒-颗粒随机碰撞新模型[J]. 工程热物理学报, 2001,22(5): 629-632.(FAN Jian-ren, YAO Jun, ZHANG Xin-yu, CEN Ke-fa. Modeling particle-to-particle interactions in gas-solid flows[J]. Journal of Engineering Thermophysics,2001,22(5): 629-632.(in Chinese))
[9]	刘家福, 张昌芳. 气体分子碰撞的模型无关分析[J]. 物理与工程, 2010,20(1): 26-27.(LIU Jia-fu, ZHANG Chang-fang. Model-independent analysis of the gas molecules collision[J].Physics and Engineering,2010,20(1): 26-27.(in Chinese))
[10]	王玉明. 微小颗粒碰撞与凝并模型的研究[D]. 硕士学位论文. 杭州: 中国计量学院, 2012.(WANG Yu-ming. Research on the model of micro-particle collision and coagulation[D]. Master Thesis. Hangzhou: China Jiliang University, 2012.(in Chinese))
[11]	张文斌, 祁海鹰, 由长福, 徐旭常. 碰撞诱发颗粒团聚及破碎的力学分析[J]. 清华大学学报(自然科学版), 2002,42(12): 1639-1643.(ZHANG Wen-bin, QI Hai-ying, YOU Chang-fu, XU Xu-chang. Mechanical analysis of agglomeration and fragmentation of particles during collision [J]. Journal of Tsinghua University (Science and Technology),2002,42(12):1639-1643.(in Chinese))
[12]	柳冠青. 范德华力和静电力下的细颗粒离散动力学研究[D]. 博士学位论文. 北京: 清华大学, 2011.(LIU Guan-qing. Discrete element methods of fine particle dynamics in presence of Van der Waals and electrostatic forces[D]. PhD Thesis. Beijing: Tsinghua University, 2011.(in Chinese))
[13]	周涛, 李洪钟. 粘性颗粒流化床中聚团大小的计算模型[J]. 化学反应工程与工艺, 1999,15(1): 44-52.(ZHOU Tao, LI Hong-zhong. The calculation model of agglomerate sizes in fluidized beds of cohesive particles[J]. Chemical Reaction Engineering and Technology,1999,15(1): 44-52.(in Chinese))
[14]	崔术祥. 湿度对室内颗粒物分布的影响[D]. 硕士学位论文. 湖南: 湖南工业大学, 2013.(CUI Shu-xiang. The influence of humidity on the distribution of indoor particle[D]. Master Thesis. Hunan: Hunan University of Technology, 2013.(in Chinese))
[15]	陈富华. 燃煤超细颗粒物化学团聚理论及系统设计研究[D]. 硕士学位论文. 武汉: 华中科技大学, 2012.(CHEN Fu-hua. A theory study and system design of chemical agglomeration for ultrafine particulate matter[D]. Master Thesis. Wuhan: Huazhong University of Science and Technology, 2012.(in Chinese))
[16]	谢名春. 关于分子碰壁数的计算[J]. 四川师范大学学报(自然科学版), 1990,13(1): 72-73.(XIE Ming-chun. Calculation concerning the number of molecules colliding with a wall[J]. Journal of Sichuan Normal University(Natural Science),1990,13(1): 72-73.(in Chinese))
[17]	Nazaroff W W. Indoor particle dynamics[J]. Indoor Air,2004,14(7): 175-183.
[18]	中华人民共和国建设部, 中华人民共和国国家质量监督检验检疫总局. 采暖通风与空气调节设计规范: GB 50019—2003[S]. 2003.(Ministry of Construction of the People’s Republic of China, General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China. Code for design of heating ventilation and air conditioning: GB 50019—2003[S]. 2003.(in Chinese))