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Simulations of pollutant dispersion at toll plazas using three-dimensional CFD models

He, Jie , Qi, Zhiguo , Zhao, Chihang , & Bao, Xiangtai (2009) Simulations of pollutant dispersion at toll plazas using three-dimensional CFD models. Transportation Research Part D: Transport and Environment, 14(8), pp. 557-566.

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Abstract

Toll plazas are particularly susceptible to build-ups of vehicle-emitted pollutants because vehicles pass through in low gear. To look at this, three-dimensional computational fluid dynamics simulations of pollutant dispersion are used on the standard k e turbulence model. The effects of wind speed, wind direction and topography on pollutant dispersion were discussed. The Wuzhuang toll plaza on the Hefei-Nanjing expressway is considered, and the effects of the retaining walls along both sides of the plaza on pollutant dispersion is analysed. There are greater pollutant concentrations near the tollbooths as the angle between the direction of the wind and traffic increases implying that retaining walls impede dispersion. The slope of the walls has little influence on the variations in pollutant concentration.

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3 citations in Scopus
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3 citations in Web of Science®

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ID Code: 27675
Item Type: Journal Article
Additional URLs:
DOI: 10.1016/j.trd.2009.08.001
ISSN: 1361-9209
Subjects: Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Impact Assessment (050204)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > AUTOMOTIVE ENGINEERING (090200) > Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) (090201)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
Divisions: Current > Research Centres > Centre for Accident Research & Road Safety - Qld (CARRS-Q)
Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 02 Oct 2009 08:14
Last Modified: 11 Aug 2011 04:38

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