Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
권호 표지

A Theoretical Study on Wet Scavenging of Atmospheric Aerosols by Rain Drops

대기에어로졸 입자의 이론적 강수세정에 관한 연구

  • Published : 1999.02.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this work, a theoretical model has been formulated which allows the study of the scavenging efficiencies of aerosol particles by the rain drops. Aerosol particles are scavenged by the simultaneous brownian diffusion, interception and inertial impaction force. In addition the calculations based on the collision efficiency model are carried out for the collision of aerosol particles with diameter range 0.01~30 $mu extrm{m}$ and rain drops with diameter 0.02$\times$$2^{n/3}$(n=1, 2, …, 17)cm. The results indicate that: (1) the below-cloud scavenging affects mainly the coarse particles (＞3 ${\mu}{\textrm}{m}$), the fine particles remaining almost unchanged; (2) the scavenging efficiencies by below-cloud in the heavy rain (rain intensity, 10 mm/hr) surpass the efficiency found in the drizzle rain (rain intensity, 1 mm/hr).

Keywords

References

  1. 한국대기보전학회지 v.13 no.5 전주시에서 채수된 강수의 화학적 조성 나춘기;정재일
  2. 한국대기보전학회지 v.12 no.2 강수에 의한 대기 에어로졸 입자의 세정 특성 박정호;최금찬;카사하라 미키오
  3. 한국대기보전학회지 v.13 no.6 저압 임패터를 이용한 대기에어로졸 입자의 입경분포 측정과 화학조성 자료의 해석 박정호;최금찬
  4. 한국대기보전학회지 v.12 no.1 삼척지역 우수의 이온성분농도에 관한 연구 이승일;김승호;조기철;김희강
  5. 한국대기보전학회지 v.14 no.4 부산시 일부지역에 초기 및 후속강우의 이온성분 특성 최금찬;김창환;조정구;박정호
  6. 한국황경과학회지 v.7 no.2 인공산성비가 중요 농작물의 생육에 미치는 영향 허흥욱;허만규
  7. Atmos. Environ. v.18 $NH_4/Ca$ ratio in different forms of atmospheric deposition: Interpretative potential Altwicker. E.R.;J.T. Mahar
  8. J. Atmos. Sci. v.33 Therminal velocity and shape of cloud and precipitation drops aloft Beard, K.V.
  9. Atmos. Environ. v.23 Theory and results from a quasi-steady-state precipitation-scavenging model Berkowitz, C.M.;R.C. Easter;B.C. Scott
  10. Q.J.R. Met. Sco. v.76 The size distribution of raindrop Best, A.C.
  11. Atmos. Environ. v.20 A second generation model for regional-scale transport/chemical/deposition Carmichel, G.R.;L.K. Peters;T. Kitada
  12. J. Geophys. Res. v.92 A three dimensional Eulerian acid deposition modle: physical concepts and formulations Chang, J.S.;R.A. Brost;I.S.A. Isaksen;S. Madronich;P. Middleton;W.R. Stockwell;D.J. Walcek
  13. Atmos. Environ. v.10 Statistical aspects of the washout of polydisperse aerosols Dana, M.T.;J.M. Hales
  14. Atmos. Environ. v.12 Field studies of atmospheric paritculate concentration changes during precipitation Davenport, H.M.;L.K. Peters
  15. The Mechanics of Aerosols Fuchs, N.A.
  16. J. Atmos. Sci. v.34 A numerical determination of the efficiency with which spherical aerosol particles collide with spherical water drops due inertial impaction and phoretic and electrical forces Grover, S.N.;H.R. Pruppacher
  17. J. Geophys.Res. v.90 The importance of liquid-phase oxidation of $SO_2$ in the troposhere Hegg, D.A.
  18. Atmos. Eenviron. v.16 In-cloud and below-cloud scavenging of mitric acid vapor Levine, S.Z.;S.E. Schwartz
  19. J. Met. v.5 The distribution of raindrops with size Marshall, J.S.
  20. J. Geophys. Res. v.88 Droplet phase (heterogeneous) and gas phase (homogeneous) contributions to secondary ambient formation as functions of relative humidity McMurry, P.H.;J.C. Wilson
  21. Atmos. Eenviron. v.25A The efficiency with which drizzle and precipitation sized drops collide with aerosol particle McGann, B.;S.G. Jennings
  22. Atmas. Environ. v.28 Parametric study of elective romoval of atmospheric aerosol by below-cloud scavenging Nieto, P.J.G.;B.A. Garcia;J.M.F. Diaz;M.A.R. Braua
  23. Microphysics of Clouds and Precipitation Pruppacher, H.R.;J.D. Klett
  24. Geophys. Res. Lett. v.10 The mechanism of sulfate aerosol formation: Chemical and sulfur isotopic eviednce Saltzman, E.S.;G.W. Brass;D.A. Price
  25. Atmospheric Chemistry and Physics of Air Pollution Senfeld, J.H.
  26. J. Atmos. Sci. v.28 Doppler radar observations of drop-size distributions in a thunderstorm Sekhon, R.S.;R.C. Srivastava
  27. Water, Air and Pollution v.7 Some approxiamtions for the wet and dry removal of particles and gases form the atmosphere Slinn, W.G.N.
  28. Industrial Gas Cleaning Strauss, W.
  29. In Aerodynamic Capture of Particles Walton, W.;A. Woolcock
  30. J. Atmos. Sci. v.35 On the effect of electric charges on the scavenging of aerosol particles by clouds and small raindrops Wang, P.K.;S.N. Grover;H.R. Pruppacher
  31. Atmos. Environ. v.12 The physical characteristics of sulfur aerosols Whitby, K.T.
  32. J. Atmos. Chem. v.20 The scavenging of nitrate by clouds and precipitation Wurzler, S.;A.I. Flossmann;H.R. Preppacher;S.E. Schwartz
  33. 新版數値解析ハンドブック 大野 豊
  34. 修士論文, 京都大學校 大氣中からの汚染物質の除去に關する硏究 東野 達
  35. 流體力學の數値計算法 藤井孝藏