Wind tunnel measurement of flow and dispersion over urban area

Abstract

Abstract. Measurements of flow and dispersion over urban area model were conducted in the boundary layer wind tunnel in VZLU. Scale model of an industrial area with its residential neighborhood was equipped with ground-level emission source and the flow and dispersion of emissions was measured. Flow field was studied using hot wire anemometer and concentration field was studied using flame ionization detector. These measurements were used for the verification of a new computational model of emission flow and dispersion, which was developed in VZLU.

Physical and CFD model used in the analysis of particles dispersion

“…Upon them, pollutant concentration measurements were carried out for different orientations, noting the importance of studies that characterize districts and urban geometries. In another work [22] , a digital terrain model (DTM) was used to introduce a scale model of the city of Liberec (Czech Republic). On it, an emission point was located, and a series of concentration sensors were used to perform the analysis.…”

Gas dispersion modelling in a critical infrastructure area

“…Recent and not so recent work in VZLU in the area of gas dispersion included dispersion around train station [1] and dispersion in large urban area [2] and detailed model from the same area [3]. Dispersion over an coal mine [4] and effects of wind fences porosity were studied in Czech Republic as well [5].…”