Publication detail

Air Pollution Dispersion in Segments of Urban Areas

POSPÍŠIL, J. ŠPILÁČEK, M. LISÝ, M.

Original Title

Air Pollution Dispersion in Segments of Urban Areas

Type

journal article - other

Language

English

Original Abstract

The paper presents results of numerical calculation of pollutants dispersion in segments of urban areas. Geometry of the typical segments of urban area was transformed in numerical models built up from hexagonal finite elements. The solution domains represent areas of 1 × 1 km. Traffic is considered as the primary source of airborne particles. Dispersion of pollutants from the traffic path in direction perpendicular to the traffic path is monitored as important parameter for subsequent simplified prediction of air pollution concentration in urban areas. Deposition of particles is described by inclusion of Brownian diffusivity and eddy diffusivity in close vicinity of the surfaces. The relation of PM10 concentration and perpendicular distance from the line source was used for evaluation of the PM10 dispersion intensity. Numerical modelling (CFD code StarCD) was used as the computational code for carried out studies. The Eulerian approach of the particle dispersion was engaged. The parametrical study was focused on assessment of pollutant dispersion from line sources surrounded by the buildings with various configurations.

Keywords

particulate matter; CFD modelling; dispersion; particulate matter; line source

Authors

POSPÍŠIL, J.; ŠPILÁČEK, M.; LISÝ, M.

RIV year

2015

Released

30. 11. 2015

Publisher

WSEAS

Location

Atény, Řecko

ISBN

1790-5079

Periodical

WSEAS Journal Transactions on Environment and Development

Year of study

11

Number

2015

State

Republic of Italy

Pages from

237

Pages to

245

Pages count

9

URL

http://www.wseas.org/multimedia/journals/environment/2015/a525815-088.pdf

BibTex

@article{BUT119752,
  author="Jiří {Pospíšil} and Michal {Špiláček} and Martin {Lisý}",
  title="Air Pollution Dispersion in Segments of Urban Areas",
  journal="WSEAS Journal Transactions on Environment and Development",
  year="2015",
  volume="11",
  number="2015",
  pages="237--245",
  issn="1790-5079",
  url="http://www.wseas.org/multimedia/journals/environment/2015/a525815-088.pdf"
}