Pollution Dispersion in Street Canyon Under Traffic Induced Flow and Turbulence

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F99%3A00000130" target="_blank" >RIV/00216305:26210/99:00000130 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Pollution Dispersion in Street Canyon Under Traffic Induced Flow and Turbulence

Popis výsledku v původním jazyce

The paper deals with a computational model for traffic induced flow field and turbulence in a 3D street canyon. An Eulerian-Lagrangean model developed is presented that accounts for moving vehicles in several combinations of traffic lanes, one- or two-way traffic and different traffic rates. Moving vehicles are treated as a discrete phase using Particle-Source-In-Cell method. A Lagrangean momentum equation is solved for moving vehicles and additional momentum source is calculated for the momentum of continuos phase of ambiant air. Also several formulas for traffic induced turbulence are tested to show the influence on the flow field entrained into the street canyon. The street canyon is defined with an aspect ratio of W/H=1.27. As the results the velocity field in the mid-cross section of the canyon is presented showing the influence of traffic rate and one- or two-way traffic in two or four lanes.

Název v anglickém jazyce

Pollution Dispersion in Street Canyon Under Traffic Induced Flow and Turbulence

Popis výsledku anglicky

The paper deals with a computational model for traffic induced flow field and turbulence in a 3D street canyon. An Eulerian-Lagrangean model developed is presented that accounts for moving vehicles in several combinations of traffic lanes, one- or two-way traffic and different traffic rates. Moving vehicles are treated as a discrete phase using Particle-Source-In-Cell method. A Lagrangean momentum equation is solved for moving vehicles and additional momentum source is calculated for the momentum of continuos phase of ambiant air. Also several formulas for traffic induced turbulence are tested to show the influence on the flow field entrained into the street canyon. The street canyon is defined with an aspect ratio of W/H=1.27. As the results the velocity field in the mid-cross section of the canyon is presented showing the influence of traffic rate and one- or two-way traffic in two or four lanes.

Druh

D - Stať ve sborníku

CEP obor

DI - Znečištění a kontrola vzduchu

OECD FORD obor

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Projekt

<a href="/cs/project/OE32" target="_blank" >OE32: Transport a přeměna emisních složek ovlivnňujících životní prostředí v traposféře nad Evropou: 2. fáze</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

1999

Kód důvěrnosti údajů

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

Název statě ve sborníku

2nd International Conference Urban Air Quality

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

Institute of Physics, London

Místo vydání

Madrid, Spain

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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