Ventilation of idealised urban area, LES and wind tunnel experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10292139" target="_blank" >RIV/00216208:11320/14:10292139 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/epjconf/20146702062" target="_blank" >http://dx.doi.org/10.1051/epjconf/20146702062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20146702062" target="_blank" >10.1051/epjconf/20146702062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ventilation of idealised urban area, LES and wind tunnel experiment

Popis výsledku v původním jazyce

In order to estimate the ventilation of vehicle pollution within street canyons, a wind tunnel experiment and a large eddy simulation (LES) was performed. A model of an idealised urban area with apartment houses arranged to courtyards was designed according to common Central European cities. In the wind tunnel, we assembled a set-up for simultaneous measurement of vertical velocity and tracer gas concentration. Due to the vehicle traffic emissions modelling, a new line source of tracer gas was designedand built into the model. As a computational model, the LES model solving the incompressible Navier-Stokes equations was used. In this paper, we focused on the street canyon with the line source situated perpendicular to an approach flow. Vertical and longitudinal velocity components of the flow with the pollutant concentration were obtained from two horizontal grids placed in different heights above the street canyon. Vertical advective and turbulent pollution fluxes were computed from

Název v anglickém jazyce

Ventilation of idealised urban area, LES and wind tunnel experiment

Popis výsledku anglicky

In order to estimate the ventilation of vehicle pollution within street canyons, a wind tunnel experiment and a large eddy simulation (LES) was performed. A model of an idealised urban area with apartment houses arranged to courtyards was designed according to common Central European cities. In the wind tunnel, we assembled a set-up for simultaneous measurement of vertical velocity and tracer gas concentration. Due to the vehicle traffic emissions modelling, a new line source of tracer gas was designedand built into the model. As a computational model, the LES model solving the incompressible Navier-Stokes equations was used. In this paper, we focused on the street canyon with the line source situated perpendicular to an approach flow. Vertical and longitudinal velocity components of the flow with the pollutant concentration were obtained from two horizontal grids placed in different heights above the street canyon. Vertical advective and turbulent pollution fluxes were computed from

Druh

D - Stať ve sborníku

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

EFM13 - EXPERIMENTAL FLUID MECHANICS 2013

ISBN

—

ISSN

2100-014X

e-ISSN

—

Počet stran výsledku

10

Strana od-do

020621-0206210

Název nakladatele

E D P SCIENCES

Místo vydání

CEDEX A

Místo konání akce

Kutná Hora

Datum konání akce

19. 11. 2014

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000343672100065