Neutrally stratified flow modelling over complex terrain at meso-scale: open-cut coal mine study

0388716 - ÚT 2013 RIV CZ eng C - Conference Paper (international conference)
Nosek, Štěpán - Jaňour, Zbyněk - Jurčáková, Klára - Kellnerová, Radka - Kukačka, Libor
Neutrally stratified flow modelling over complex terrain at meso-scale: open-cut coal mine study.
Experimental Fluid Mechanics 2012. Liberec: Technical University of Liberec, 2012 - (Vít, T.; Dančová, P.; Novotný, P.), s. 518-523. ISBN 978-80-7372-912-7.
[Experimental Fluid Mechanics 2012 /7./. Hradec Králové (CZ), 20.11.2012-23.11.2012]
R&D Projects: GA TA ČR TA01020428
Institutional research plan: CEZ:AV0Z20760514
Keywords : air pollution * atmospheric boundary layer * laminar-turbulent analogy * meso-scale
Subject RIV: DG - Athmosphere Sciences, Meteorology

The objective of this case study was to determine the influence of the coal mine cavity and its vicinity on the main flow field with respect to prevailing wind direction. In order to model the neutrally stratified flow over extremely huge open-cut coal mine Libouš situated at north-west of Czech Republic the laminar flow analogy was applied. The model was scaled down to 1:9000 according to dimensions of wind-tunnel and selected coal mine surroundings. The measurements of longitudinal and lateral velocity components in selected vertical, resp. horizontal planes were performed by LDA. The measured data will be used for validation of CFD simulation and for selections of area of interest at bigger scales where turbulent flow modelling will be performed. The results revealed that not only of cavity shape and deepness but also the surroundings orography has influence on flow pattern, hence on ventilation, within the area of interest.
Permanent Link: http://hdl.handle.net/11104/0217646