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- W977001437 abstract "The problem of pollution dispersion throughout atmospheric boundary layer has grown in importance since human activity has become so intense that it started having considerable impact on natural environment. The level of concentration of pollutants has escalated, particularly in urban areas and it impacts on their inhabitants. The paper presents the results of the complex research program aimed at understanding a character of the flow field in neighborhood of bluff-bodies immersed in a boundary layer and characteristics of pollutants dispersion in that area. Analysis of gas pollutants dispersion process requires in-depth identification of the structure of flow around the buildings. The analysis has been performed for the 3D case of two in-line surface-mounted bluff bodies, arranged in tandem, which were placed with one face normal to the oncoming flow. The mean concentration profiles of tracer gas (CO2) for various interobstacle gaps were measured in wind tunnel. Characteristic feature of flow field around groups of buildings in urban areas is high level the unsteady phenomena resulting from itself character of the wind or from the interference of the wake flow connected with a process of vortex shedding. This is the factor affecting process of the dispersion of pollutants in the built-up area acting more complex the mechanism of propagate of small parts explained on the basis of processes of advection and turbulent diffusion. The local characteristics of flow were obtained by the use of commercial CFD code (FLUENT)." @default.
- W977001437 created "2016-06-24" @default.
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- W977001437 date "2010-01-01" @default.
- W977001437 modified "2023-09-26" @default.
- W977001437 title "Analysis of pollutant dispersion in flow around the array of buildings" @default.
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