Detail publikace

Dispersion Characteristics of PM10 Particles Identified by Numerical Simulation in the Vicinity of Roads Passing through Various Types of Urban Areas

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

15

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"
}