EVOLUTION OF PARTICLE SIZE DISTRIBUTION IN AIR IN THE RAINFALL PROCESS VIA THE MOMENT METHOD

被引：0
|
作者：
Gan, Fu-Jun [1 ]
Lin, Jian-Zhong [1 ,2 ]
机构：
[1] Zhejiang Univ, Dept Mech, Hangzhou 310003, Zhejiang, Peoples R China
[2] China Jiliang Univ, Hangzhou, Zhejiang, Peoples R China
来源：
THERMAL SCIENCE | 2012年 / 16卷 / 05期
基金：
中国国家自然科学基金;
关键词：
particles in air in the rainfall process; scavenging coefficient; distribution of particle; numerical simulation; AEROSOL; REMOVAL;
D O I：
10.2298/TSCI1205372G
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Population balance equation is converted to three moment equations to describe the dynamical behavior of particle size distribution in air in the rainfall. The scavenging coefficient is expressed as a polynomial function of the particle diameter, the raindrop diameter and the raindrop velocity. The evolutions of particle size distribution are simulated numerically and the effects of the raindrop size distribution on particle size distribution are studied. The results show that the raindrops with smaller geometric mean diameter and geometric standard deviation of size remove particles much more efficiently. The particles which fall in the "greenfield gap" are the most difficult to be scavenged from the air.
引用
收藏
页码：1372 / 1376
页数：5
相关论文
共 50 条
  • [41] An application of bootstrap method for analysis of particle size distribution
    Matsuyama, Tatsushi
    ADVANCED POWDER TECHNOLOGY, 2018, 29 (06) : 1404 - 1408
  • [42] A method to determine particle size distribution in soils with gypsum
    Pearson, M. J.
    Monteith, S. E.
    Ferguson, R. R.
    Hallmark, C. T.
    Hudnall, W. H.
    Monger, H. C.
    Reinsch, T. G.
    West, L. T.
    GEODERMA, 2015, 237 : 318 - 324
  • [43] Particle size distribution of the sludge by laser diffraction method
    Fryzlewicz-Kozak, Beata
    PRZEMYSL CHEMICZNY, 2018, 97 (12): : 2170 - 2172
  • [44] MICROMETRIC METHOD FOR DETERMINING PARTICLE-SIZE DISTRIBUTION
    KUZNETSOV, YN
    KHODAKOV, GS
    COLLOID JOURNAL OF THE USSR, 1975, 37 (02): : 350 - 352
  • [45] METHOD FOR PARTICLE SIZE DISTRIBUTION FOR THE ENTIRE SUBSIEVE RANGE
    JACOBSEN, AE
    SULLIVAN, WF
    ANALYTICAL CHEMISTRY, 1947, 19 (11) : 855 - 860
  • [46] Hybrid method - the case of arbitrary particle size distribution
    Czerwinski, M
    Mroczka, J
    OPTICA APPLICATA, 2002, 32 (1-2) : 35 - 40
  • [47] IN-PROCESS PARTICLE-SIZE DISTRIBUTION MEASUREMENTS AND CONTROL
    HARVILL, TL
    HOLVE, DJ
    PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION, 1993, 10 (05) : 262 - 265
  • [48] Effects of particle-size distribution in dry process shotcrete
    Jolin, M
    Beaupré, D
    ACI MATERIALS JOURNAL, 2004, 101 (02) : 131 - 135
  • [49] The fractal characteristic of particle size distribution in coal grinding process
    Zeng, FG
    Zhu, SQ
    Wang, ZN
    MINING SCIENCE AND TECHNOLOGY 99, 1999, : 493 - 496
  • [50] SIMULATION OF PARTICLE-SIZE DISTRIBUTION IN AN AGGREGATION BREAKUP PROCESS
    CHEN, W
    BERG, JC
    FISHER, RR
    CHEMICAL ENGINEERING SCIENCE, 1990, 45 (09) : 3003 - 3006
12345