Publication detail
Particle re-suspension in city areas with intensive traffic
POSPÍŠIL, J. JÍCHA, M.
Czech title
Resuspenze jemných prachových částic v oblastech s intenzivní silniční dopravou
English title
Particle re-suspension in city areas with intensive traffic
Type
conference paper
Language
en
Original abstract
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 a near-ground air velocity in the city area. To simulate traffic, an original model is used that takes into account traffic density, speed of cars and number of traffic lanes (Jicha at al., 2000). The predicted near-ground air threshold velocity of re-suspension at the studied street canyon is compared with two theoretical studies on particle re-suspension from horizontal surfaces. The wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno.
Czech abstract
Příspěvek stručně seznámí s podstatou základních mechanismů způsobujících resuspenzi částic a zhodnotí možnosti popsání resuspenze matematickým modelem. Podrobně bude komentován způsob vyhodnocení dlouhodobých měření koncentrací PM10 s cílem identifikovat mezní rychlosti resuspenze a další charakteristické rychlosti větru.
English abstract
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 a near-ground air velocity in the city area. To simulate traffic, an original model is used that takes into account traffic density, speed of cars and number of traffic lanes (Jicha at al., 2000). The predicted near-ground air threshold velocity of re-suspension at the studied street canyon is compared with two theoretical studies on particle re-suspension from horizontal surfaces. The wind threshold velocity of re-suspension is derived from a long-term measurement carried out in the city of Brno.
Keywords in Czech
částice, resuspenze
Keywords in English
resuspension, particulate matter
RIV year
2010
Released
02.11.2010
Publisher
Transport Research Centre
Location
Brno
ISBN
978-80-7399-141-8
Book
Transport, Health and Environment
Edition number
1
Pages from–to
39–46
Pages count
242
BIBTEX
@inproceedings{BUT35267,
author="Jiří {Pospíšil} and Miroslav {Jícha},
title="Particle re-suspension in city areas with intensive traffic",
booktitle="Transport, Health and Environment",
year="2010",
month="November",
pages="39--46",
publisher="Transport Research Centre",
address="Brno",
isbn="978-80-7399-141-8"
}