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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F08%3APU77735" target="_blank" >RIV/00216305:26210/08:PU77735 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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 carriedout 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 oftraffic 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.

Czech name

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

Czech description

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 carriedout 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 oftraffic 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.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DI - Pollution and air control

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Croatian Meteorological Journal

ISSN

1330-0083

e-ISSN

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Volume of the periodical

43

Issue of the periodical within the volume

HARMO12

Country of publishing house

HR - CROATIA

Number of pages

5

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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