Comparison Wind-Tunnel Experiment with Les Modelling of Atmospheric Dispersion over Complex Terrain

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00427475" target="_blank" >RIV/61388998:_____/14:00427475 - 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

Comparison Wind-Tunnel Experiment with Les Modelling of Atmospheric Dispersion over Complex Terrain

Popis výsledku v původním jazyce

We present the results from application study concerning of atmospheric dispersion modelling over open-cut coal mine and its surrounding topography by means of wind-tunnel and computational fluid modelling ? large eddy scale simulation (LES). The study has main objective to predict the air quality in populated areas with respect to prevailing wind direction. Simultaneous point measurement of two velocity components and concentrations by Laser Doppler Anemometry (LDA) and Fast Flame Ionization Detector (FFID), respectively, was performed during wind-tunnel experiment. The velocity and concentration field obtained from wind-tunnel measurements are compared with those from LES. The impact of complex topography and especially surface roughness on passive pollutant dispersion was observed. The comparison revealed that LES has a big potential to predict atmospheric dispersion processes occurred at complex terrain topography.

Název v anglickém jazyce

Comparison Wind-Tunnel Experiment with Les Modelling of Atmospheric Dispersion over Complex Terrain

Popis výsledku anglicky

We present the results from application study concerning of atmospheric dispersion modelling over open-cut coal mine and its surrounding topography by means of wind-tunnel and computational fluid modelling ? large eddy scale simulation (LES). The study has main objective to predict the air quality in populated areas with respect to prevailing wind direction. Simultaneous point measurement of two velocity components and concentrations by Laser Doppler Anemometry (LDA) and Fast Flame Ionization Detector (FFID), respectively, was performed during wind-tunnel experiment. The velocity and concentration field obtained from wind-tunnel measurements are compared with those from LES. The impact of complex topography and especially surface roughness on passive pollutant dispersion was observed. The comparison revealed that LES has a big potential to predict atmospheric dispersion processes occurred at complex terrain topography.

Druh

O - Ostatní výsledky

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/TA01020428" target="_blank" >TA01020428: Výzkum možnosti využití fyzikálních a matematických modelů pro řešení problematiky prašnosti v reálných podmínkách komplikovaného terénu.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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