Evolution of Aerosol Particles in the Rainfall Process via Method of Moments
Joint Authors
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-15
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The method of moments is employed to predict the evolution of aerosol particles in the rainfall process.
To describe the dynamic properties of particle size distribution, the population balance equation is converted to moment equations by the method of moments and the converted equations are solved numerically.
The variations of particle number concentration, geometric mean diameter, and geometric standard deviation are given in the cases that the Brownian diffusion and inertial impaction of particles dominate, respectively.
The effects of raindrop size distribution on particle size distribution are analyzed in nine cases.
The results show that the particle number concentration decreases as time goes by, and particles dominated by Brownian diffusion are removed more significantly.
The particle number concentration decreases much more rapidly when particle geometric mean diameter is smaller, and the particle size distribution tends to be monodisperse.
For the same water content, the raindrops with small geometric mean diameters can remove particles with much higher efficiency than those with large geometric mean diameters.
Particles in the “Greenfield gap” are relatively difficult to scavenge, and a new method is needed to remove it from the air.
American Psychological Association (APA)
Yuan, Fangyang& Gan, Fujun. 2013. Evolution of Aerosol Particles in the Rainfall Process via Method of Moments. Abstract and Applied Analysis،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-492356
Modern Language Association (MLA)
Yuan, Fangyang& Gan, Fujun. Evolution of Aerosol Particles in the Rainfall Process via Method of Moments. Abstract and Applied Analysis No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-492356
American Medical Association (AMA)
Yuan, Fangyang& Gan, Fujun. Evolution of Aerosol Particles in the Rainfall Process via Method of Moments. Abstract and Applied Analysis. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-492356
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-492356