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Development of Empirical Model for the Air Pollutant Dispersion in Urban Street Canyons Using Wind Tunnel Test  

Park, Seong-Kyu (Department of Environmental Engineering, University of Seoul)
Kim, Shin-Do (Department of Environmental Engineering, University of Seoul)
Lee, Hee-Kwan (Department of Civil and Environmental Engineering, University of Incheon)
Publication Information
Journal of Korean Society of Environmental Engineers / v.27, no.8, 2005 , pp. 852-858 More about this Journal
Abstract
Modeling techniques for air quality are useful tools in air quality management. Especially, the air quality in urban area is significantly influenced by local surroundings such as buildings and traffic. When considering the air quality in a street canyon, which is usually filmed by a series of consecutive buildings and a street, currently available air dispersion model have a number of limitations to predict the air quality properly. In this study, it is aimed to propose an empirical model for the air quality in urban street canyons. A series of wind tunnel tests, followed by statistical analysis, were conducted. In conclusion, it is found that a wide street canyon and a perpendicular external wind to the street canyon are beneficial to achieve an enhanced air quality in street canyon environment. The model prediction using the proposed model also shows reliable correlations to the wind tunnel test results.
Keywords
Urban Street Canyon; Vehicle Emission; Air Pollutant Dispersion; Wind Tunnel Test; Street Canyon Model;
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