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POSPÍŠIL, J. HUZLÍK, J. LIČBINSKÝ, R. ŠPILÁČEK, M.
Originální název
Dispersion Characteristics of PM10 Particles Identified by Numerical Simulation in the Vicinity of Roads Passing through Various Types of Urban Areas
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
The dispersion of particulate matter emitted by road transport to the vicinity of roads is predominantly influenced by the character of the air velocity field. The air flow depends on factors such as the speed and direction of the blowing wind, the movement of cars, and the geometries of the buildings around a road. Numerical modeling based on the control volume method was used in this study to describe the relevant processes closely. Detailed air velocity fields were identified in the vicinity of a straight road surrounded by various patterns of built-up urban land. The evaluation of the results was generalized to exponential expressions, affecting the decrease of the mass concentration of fine particles with the increasing distance from the road. The obtained characteristics of the mass concentration fields express the impact of the building geometries and configurations on the dispersion of particulate matter into the environment. These characteristics are presented for two wind speeds, namely, 2 m·s−1 and 4 m·s−1. Furthermore, the characteristics are introduced in relation to three wind directions: perpendicularly, obliquely, and in parallel to the road. The results of the numerical simulations are compared with those obtained via the in-situ measurements, for verification of the validity of the linear emission source calculation.
Klíčová slova
particles; traffic; dispersion; PM10; pollution
Autoři
POSPÍŠIL, J.; HUZLÍK, J.; LIČBINSKÝ, R.; ŠPILÁČEK, M.
Vydáno
30. 4. 2020
Nakladatel
MDPI
Místo
Basel, Switzerland
ISSN
2073-4433
Periodikum
Atmosphere
Ročník
11
Číslo
5
Stát
Švýcarská konfederace
Strany od
1
Strany do
15
Strany počet
URL
https://www.mdpi.com/2073-4433/11/5/454
Plný text v Digitální knihovně
http://hdl.handle.net/11012/193406
BibTex
@article{BUT163836, author="Jiří {Pospíšil} and Jiří {Huzlík} and Roman {Ličbinský} and Michal {Špiláček}", title="Dispersion Characteristics of PM10 Particles Identified by Numerical Simulation in the Vicinity of Roads Passing through Various Types of Urban Areas", journal="Atmosphere", year="2020", volume="11", number="5", pages="1--15", doi="10.3390/atmos11050454", issn="2073-4433", url="https://www.mdpi.com/2073-4433/11/5/454" }