CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions

Peng Qin; Alessio Ricci; Bert Blocken

doi:10.1007/978-981-19-9822-5_5

CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions

Peng Qin^*
, Alessio Ricci
, Bert Blocken

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

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.

Original language	English
Title of host publication	Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022
Publisher	Springer
Pages	33-39
Number of pages	7
ISBN (Electronic)	9789811998225
ISBN (Print)	9789811998218
DOIs	https://doi.org/10.1007/978-981-19-9822-5_5
Publication status	Published - 5 Sept 2023
Event	5th International Conference on Building Energy and Environment 2022 - Montreal, Canada Duration: 25 Jul 2022 → 29 Jul 2022

Publication series

Name	Environmental Science and Engineering
ISSN (Print)	1863-5520
ISSN (Electronic)	1863-5539

Conference

Conference	5th International Conference on Building Energy and Environment 2022
Abbreviated title	COBEE 2022
Country/Territory	Canada
City	Montreal
Period	25/07/22 → 29/07/22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Keywords

CFD
Idealized source
Pollutant dispersion
Realistic source
Street canyon

ASJC Scopus subject areas

Environmental Engineering
Information Systems

Access to Document

10.1007/978-981-19-9822-5_5

Cite this

@inproceedings{964e3e002ad640bba40d48c55379ca73,

title = "CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions",

abstract = "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.",

keywords = "CFD, Idealized source, Pollutant dispersion, Realistic source, Street canyon",

author = "Peng Qin and Alessio Ricci and Bert Blocken",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.; 5th International Conference on Building Energy and Environment 2022, COBEE 2022 ; Conference date: 25-07-2022 Through 29-07-2022",

year = "2023",

month = sep,

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doi = "10.1007/978-981-19-9822-5\_5",

language = "English",

isbn = "9789811998218",

series = "Environmental Science and Engineering",

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booktitle = "Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022",

}

Qin, P, Ricci, A & Blocken, B 2023, CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions. in Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022. Environmental Science and Engineering, Springer, pp. 33-39, 5th International Conference on Building Energy and Environment 2022, Montreal, Quebec, Canada, 25/07/22. https://doi.org/10.1007/978-981-19-9822-5_5

CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions. / Qin, Peng; Ricci, Alessio; Blocken, Bert.
Proceedings of the 5th International Conference on Building Energy and Environment. COBEE 2022. Springer, 2023. p. 33-39 (Environmental Science and Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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

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 - https://www.scopus.com/pages/publications/85172732992

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 -

CFD Simulations of Pollutant Dispersion in a Street Canyon: Impact of Ideal Versus Realistic Point Source Emissions

Abstract

Publication series

Conference

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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