DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA
Item
Title (Dublin Core)
eng
DETERMINATION OF THE PM10 URBAN THRESHOLD VELOCITY OF RE-SUSPENSION IN AN INNER PART OF URBAN AREA
Description (Dublin Core)
eng
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 (45°) 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.
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 (45°) 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.
Creator (Dublin Core)
Pospisil, Jiri
Jicha, Miroslav
Subject (Dublin Core)
eng
particulate matter;CFD modelling;particle re-suspension;street canyon
Publisher (Dublin Core)
Croatian meteorological society
Date (Dublin Core)
2008
Type (Dublin Core)
text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://hrcak.srce.hr/64337
eng
https://hrcak.srce.hr/file/96465
Source (Dublin Core)
Hrvatski meteorološki časopis
ISSN 1330-0083 (Print)
ISSN 1849-0700 (Online)
Volume 43
Issue 43/2
Language (Dublin Core)
eng
Rights (Dublin Core)
info:eu-repo/semantics/openAccess
The papers of this Journal are free of charge for personal or educational use, with respect of copyright of authors and publisher.