Impact of Open-cut Coal Mine Terrain Complexity on Atmospheric Dispersion

0397356 - ÚT 2014 GB eng C - Konferenční příspěvek (zahraniční konf.)
Nosek, Štěpán - Jaňour, Zbyněk - Kukačka, Libor - Jurčáková, Klára - Kellnerová, Radka - Gulíková, E.
Impact of Open-cut Coal Mine Terrain Complexity on Atmospheric Dispersion.
PHYSMOD 2013. Guildford: University of Surrey, 2013. ISBN N.
[PHYSMOD 2013. Guildford (GB), 16.09.2013-18.09.2013]
Grant CEP: GA TA ČR TA01020428
Institucionální podpora: RVO:61388998
Klíčová slova: wind tunnel * atmospheric boundary layer * air pollution * complex terrain * small scale

The open-cut coal mine situated in the north-west of Czech Republic represents a pit of huge dimensions (approx. 5km long, 4km wide and 115m deep). In order to predict air quality at surrounding villages and town Chomutov, with population of almost fifty thousand inhabitants, the wind-tunnel measurements of neutrally stratified flow and concentration fields were performed simultaneously over a model. The model including a necessary part of the coal mine and surrounding topography with respect to future mine expansion was designed at scale ratio 1:3300. The gaseous pollutant was simulated as a source point (representing mining machine) at the bottom of the mine. For one prevailing wind direction simultaneous measurements of velocity components and concentrations at specified planes above the model were performed by two-dimensional Laser Doppler Anemometry (LDA) and Fast-Response Flame Ionization Detector (FFID), respectively. The impact of the complex terrain on passive pollutant dispersion was observed and the assessment of the air quality at populated areas is discussed.
Trvalý link: http://hdl.handle.net/11104/0227898