Simulation of aerosol dynamics: A comparative review of algorithms used in air quality models
Technical Report
·
OSTI ID:350708
A comparative review of algorithms currently used in air quality models to simulate aerosol dynamics is presented. This review addresses coagulation, condensational growth, nucleation, and gas/particle mass transfer. Two major approaches are used in air quality models to represent the particle size distribution: (1) the sectional approach in which the size distribution is discretized into sections and particle properties are assumed to be constant over particle size sections and (2) the modal approach in which the size distribution is approximated by several modes and particle properties are assumed to be uniform in each mode. The results of this study provide useful information to select algorithms to simulate aerosol dynamics in air quality models and to improve the accuracy of existing algorithms.
- Research Organization:
- Atmospheric and Environmental Research, Inc., San Ramon, CA (United States); California Institute of Technology, Pasadena, CA (United States); Stanford Univ., CA (United States); Environmental Protection Agency, Research Triangle Park, NC (United States); Coordinating Research Council, Inc., Atlanta, GA (United States)
- OSTI ID:
- 350708
- Report Number(s):
- PB--99-134660/XAB
- Country of Publication:
- United States
- Language:
- English
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