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Development of an aerosol dynamics model for dry deposition process using the moment method

Title
Development of an aerosol dynamics model for dry deposition process using the moment method
Authors
Bae S.Y.Jung C.H.Kim Y.P.
Ewha Authors
김용표
SCOPUS Author ID
김용표scopus
Issue Date
2009
Journal Title
Aerosol Science and Technology
ISSN
0278-6826JCR Link
Citation
vol. 43, no. 6, pp. 570 - 580
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
An aerosol dynamics model for dry deposition process is developed based on the moment method. Since it is hard to fully apply the moment method to the widely used dry deposition velocity expressions based on the resistance theory, the dry deposition velocity expression by Raupach et al. (2001) is used. Detailed deposition mechanisms such as Brownian diffusion, gravitational settling, and impaction are considered in the expression. To verify the validity of the derived dynamic equation, aerosol dynamics for the dry deposition process is estimated with the expressions of Raupach et al. (2001), of Wesely (1989) modified for particles (Seinfeld and Pandis 1998), in CMAQ, and with constant value used in RAINS-ASIA. Those expressions give different dynamics. Generally, the result for this study is between the result of modified Wesely's expression and CMAQ. When using the modified Wesely's expression with the number of sections being equal or smaller than 10, the resultant size distribution does not give the peak shape accurately.
DOI
10.1080/02786820902798476
Appears in Collections:
엘텍공과대학 > 화학신소재공학전공 > Journal papers
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