TY - GEN
T1 - CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions
AU - Qin, Peng
AU - Ricci, Alessio
AU - Blocken, Bert
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023/9/5
Y1 - 2023/9/5
N2 - Pollutant dispersion is of great relevance for people living in urban areas. Idealized point and line sources are commonly used to reproduce traffic emissions in street canyons. However, a limited number of studies focus on the usage of realistic sources, such as real car geometries, which can influence the flow characteristic thus the pollutant distribution inside the canyon. This is the goal of the present paper for which Computational Fluid Dynamics (CFD) simulations were performed on a street canyon to investigate the impact of an ideal point and a realistic source. At the first stage, CFD simulations were performed with an ideal point source and validated with wind-tunnel (WT) data. At the second stage, CFD simulations were carried out on a street canyon using a realistic source. The result shows that the distribution of V*, K*, and C* inside the canyon can be strongly affected by the presence of the car body.
AB - Pollutant dispersion is of great relevance for people living in urban areas. Idealized point and line sources are commonly used to reproduce traffic emissions in street canyons. However, a limited number of studies focus on the usage of realistic sources, such as real car geometries, which can influence the flow characteristic thus the pollutant distribution inside the canyon. This is the goal of the present paper for which Computational Fluid Dynamics (CFD) simulations were performed on a street canyon to investigate the impact of an ideal point and a realistic source. At the first stage, CFD simulations were performed with an ideal point source and validated with wind-tunnel (WT) data. At the second stage, CFD simulations were carried out on a street canyon using a realistic source. The result shows that the distribution of V*, K*, and C* inside the canyon can be strongly affected by the presence of the car body.
KW - CFD
KW - Idealized source
KW - Pollutant dispersion
KW - Realistic source
KW - Street canyon
UR - http://www.scopus.com/inward/record.url?scp=85172732992&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-9822-5_5
DO - 10.1007/978-981-19-9822-5_5
M3 - Conference contribution
AN - SCOPUS:85172732992
SN - 9789811998218
T3 - Environmental Science and Engineering
SP - 33
EP - 39
BT - Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022
PB - Springer
T2 - 5th International Conference on Building Energy and Environment 2022
Y2 - 25 July 2022 through 29 July 2022
ER -
