Publication detail
Dispersion of pollutants in street canyon and street intersection under traffic induced flow and turbulence using low-Re k-e model
JÍCHA, M. KATOLICKÝ, J. POSPÍŠIL, J.
Czech title
Dispersion of pollutants in street canyon and street intersection under traffic induced flow and turbulence using low-Re k-e model
English title
Dispersion of pollutants in street canyon and street intersection under traffic induced flow and turbulence using low-Re k-e model
Type
conference paper
Language
en
Original abstract
A 3-D Eulerian-Lagrangian approach to moving vehicles is presented that takes into account the traffic induced flow rate and turbulence. The method is applied to pollutants dispersion in an individual street canyon and the system of two street canyons forming a perpendicular intersection. The approach is based on CFD calculations using Eulerian approach to continuous phase and Lagrangian approach to moving vehicles. Speed of wind was assigned values of 4, 7 and 12 m/s. One-way and two-way traffic with different traffic rates per lane is considered. In case of intersection, longitudinal wind was assumed. Predictions show differences in the pollutants dispersion in case of one- and two-way traffic.
Czech abstract
A 3-D Eulerian-Lagrangian approach to moving vehicles is presented that takes into account the traffic induced flow rate and turbulence. The method is applied to pollutants dispersion in an individual street canyon and the system of two street canyons forming a perpendicular intersection. The approach is based on CFD calculations using Eulerian approach to continuous phase and Lagrangian approach to moving vehicles. Speed of wind was assigned values of 4, 7 and 12 m/s. One-way and two-way traffic with different traffic rates per lane is considered. In case of intersection, longitudinal wind was assumed. Predictions show differences in the pollutants dispersion in case of one- and two-way traffic.
English abstract
A 3-D Eulerian-Lagrangian approach to moving vehicles is presented that takes into account the traffic induced flow rate and turbulence. The method is applied to pollutants dispersion in an individual street canyon and the system of two street canyons forming a perpendicular intersection. The approach is based on CFD calculations using Eulerian approach to continuous phase and Lagrangian approach to moving vehicles. Speed of wind was assigned values of 4, 7 and 12 m/s. One-way and two-way traffic with different traffic rates per lane is considered. In case of intersection, longitudinal wind was assumed. Predictions show differences in the pollutants dispersion in case of one- and two-way traffic.
Keywords in English
pollutants dispersion, street canyon, traffic
RIV year
1999
Released
11.10.1999
Publisher
CORIA - UMR 6614 CNRS - UNIVERSITE & INSA DE ROUEN
Location
Rouen, France
Book
International Conference on Harmonization within Atmosph
Pages count
2
BIBTEX
@inproceedings{BUT127,
author="Miroslav {Jícha} and Jaroslav {Katolický} and Jiří {Pospíšil},
title="Dispersion of pollutants in street canyon and street intersection under traffic induced flow and turbulence using low-Re k-e model",
booktitle="International Conference on Harmonization within Atmosph",
year="1999",
month="October",
publisher="CORIA - UMR 6614 CNRS - UNIVERSITE & INSA DE ROUEN",
address="Rouen, France"
}