Publication detail
Dispersion modeling of traffic particulate matter in city-scale area
POSPÍŠIL, J. JÍCHA, M.
Czech title
Modelování rozptylu zečišťujících látek generaovaných dopravou v městských oblastech
English title
Dispersion modeling of traffic particulate matter in city-scale area
Type
journal article in Web of Science
Language
en
Original abstract
This paper introduces utilization of the CFD technique for modeling of PM10 (particulate matter 10 micro-m) dispersion in urban areas, with focus on detailed description of processes in the ground surface boundary layer. The description of deposition and re-suspension processes is introduced and applied on the city-scale model of the city of Brno (pop. 400 000). The air threshold velocity of re-suspension was used as basic parameter for quantification of re-suspension. The particular value of the air threshold velocity of re-suspension was obtained from analysis of the long-term measurements carried out in the studied urban area and the subsequent small scale modeling of air flow in selected parts of the city-scale model.
Czech abstract
Příspěvek se věnuje využití výpočetní metody CFD pro modelování tuhých částic PM10 generovaných dopravou v městské zástavbě. Popis zahrnuje depozici a resuspenzi částic, která byla testována na dvou velikostně odlišných oblastech – lokální model městské části, regionální model zahrnující celou městskéu aglomeraci (400 tis. obyvatel). Hodnoty mezní rychosti resuspenze byly získány anylýzou dlouhodobých měření koncentrace částic PM10 v ovzduší.
English abstract
This paper introduces utilization of the CFD technique for modeling of PM10 (particulate matter 10 micro-m) dispersion in urban areas, with focus on detailed description of processes in the ground surface boundary layer. The description of deposition and re-suspension processes is introduced and applied on the city-scale model of the city of Brno (pop. 400 000). The air threshold velocity of re-suspension was used as basic parameter for quantification of re-suspension. The particular value of the air threshold velocity of re-suspension was obtained from analysis of the long-term measurements carried out in the studied urban area and the subsequent small scale modeling of air flow in selected parts of the city-scale model.
Keywords in Czech
prachové částice, numerické modelování, městské oblasti
Keywords in English
particulate matter, numerical modeling, urban area
RIV year
2011
Released
01.12.2011
Publisher
Inderscience Enterprises Ltd.
Location
Geneva, Switzerland
ISSN
0957-4352
Volume
47
Number
1/2/3/4
Pages from–to
216–225
Pages count
10
BIBTEX
@article{BUT90111,
author="Jiří {Pospíšil} and Miroslav {Jícha},
title="Dispersion modeling of traffic particulate matter in city-scale area",
year="2011",
volume="47",
number="1/2/3/4",
month="December",
pages="216--225",
publisher="Inderscience Enterprises Ltd.",
address="Geneva, Switzerland",
issn="0957-4352"
}