Atmospheric Dispersion modelling over Coal Mine Excavation - on LES Validation by Wind-tunnel Experiment

0429226 - ÚT 2015 DE eng A - Abstract
Nosek, Štěpán - Fuka, V. - Kukačka, Libor - Jaňour, Zbyněk
Atmospheric Dispersion modelling over Coal Mine Excavation - on LES Validation by Wind-tunnel Experiment.
6th International Symposium on Computation Wind Engineering. Hamburg: Meteorological Institute, CEN, University of Hamburg, 2014 - (Schlunzen, K.). s. 164-165
[International symposium on computation wind engineering /6./. 08.06.2014-12.06.2014, Hamburg]
R&D Projects: GA TA ČR TA01020428
Institutional support: RVO:61388998
Keywords : atmospheric dispersion * large eddy simulation * wind-tunnel * qualitative validation * complex terrain
Subject RIV: DG - Athmosphere Sciences, Meteorology

Results from validation of large eddy scale simulation (LES) model by wind-tunnel experiment are presented. The neutrally stratified atmospheric dispersion over real complex terrain – open-cut coal mine with necessary surroundings – was simulated in order to predict the air quality in populated areas situated close to the coal mine with respect to prevailing wind direction. As a computational model the LES numerical model Charles University Large-eddy Microscale Model (CLMM) was used. The mean velocity and concentration field obtained from wind-tunnel measurements are compared qualitatively with those from LES by means of Hit Rate and FAC2 (Factor of two observations) metric, respectively. According to metrics thresholds and recommended metric parameters the LES model was successfully validated with respect to dimensionless longitudinal velocity component and concentration.
Permanent Link: http://hdl.handle.net/11104/0239267