Detail publikačního výsledku

DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA

POSPÍŠIL, J.; JÍCHA, M.

Originální název

DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA

Anglický název

DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

In this paper authors focus on determination of the threshold velocity of re-suspension for particles 10 m in an urban street canyon with two-way traffic. The urban wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno. A numerical modelling based on the finite volume method is used for a detail study of the relation between a wind velocity above buildings roofs and an air velocity just above the ground surface. The predicted threshold air velocity of re-suspension at the bottom part of the studied street canyon is compared with two theoretical studies on particle re-suspension. Calculations are carried out for perpendicular, longitudinal and oblique wind direction with and without inclusion of traffic dynamic. To simulate traffic, an original model developed previously by the authors is used that takes into account traffic density, speed of cars and number of traffic lanes.

Anglický abstrakt

In this paper authors focus on determination of the threshold velocity of re-suspension for particles 10 m in an urban street canyon with two-way traffic. The urban wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno. A numerical modelling based on the finite volume method is used for a detail study of the relation between a wind velocity above buildings roofs and an air velocity just above the ground surface. The predicted threshold air velocity of re-suspension at the bottom part of the studied street canyon is compared with two theoretical studies on particle re-suspension. Calculations are carried out for perpendicular, longitudinal and oblique wind direction with and without inclusion of traffic dynamic. To simulate traffic, an original model developed previously by the authors is used that takes into account traffic density, speed of cars and number of traffic lanes.

Klíčová slova

particulate matter, CFD modelling, particle re-suspension, street canyon

Klíčová slova v angličtině

particulate matter, CFD modelling, particle re-suspension, street canyon

Autoři

POSPÍŠIL, J.; JÍCHA, M.

Rok RIV

2010

Vydáno

06.10.2008

ISSN

1330-0083

Periodikum

Croatian Meteorological Journal

Svazek

43

Číslo

HARMO12

Stát

Chorvatská republika

Strany od

657

Strany do

661

Strany počet

5

BibTex

@article{BUT48558,
  author="Jiří {Pospíšil} and Miroslav {Jícha}",
  title="DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA",
  journal="Croatian Meteorological Journal",
  year="2008",
  volume="43",
  number="HARMO12",
  pages="657--661",
  issn="1330-0083"
}