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Air Exchange Mechanism in 3-D Complex Array

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    0480559 - ÚT 2018 IT eng C - Conference Paper (international conference)
    Jurčáková, Klára - Nosek, Štěpán - Kluková, Zuzana - Kellnerová, Radka - Jaňour, Zbyněk
    Air Exchange Mechanism in 3-D Complex Array.
    18th Internacional Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes. Bologna: CNR Research Area, Bologna Italy, 2017, s. 525-529.
    [Internacional Conference on Harmonisation within Atmospheric Dispersion Modelling for Regulatory Purposes /18./. Bologna (IT), 09.10.2017-12.10.2017]
    R&D Projects: GA ČR GA15-18964S
    Institutional support: RVO:61388998
    Keywords : wind tunnel * street canyon * pollution flux measurement
    Subject RIV: DG - Athmosphere Sciences, Meteorology
    http://www.harmo.org/conferences/Proceedings/_Bologna/publishedSections/H18-105-Jurcakova.pdf

    In this paper, a wind-tunnel study on dispersion of a tracer gas emitted from a ground-level line source positioned within complex obstacle arrays is presented. The models consisted of courtyard buildings blocks with pitched roofs and of uniform and non-uniform heights. Tracer exchange between the street canyon cavities and surrounding flow was studied by simultaneous point measurement of flow and tracer concentration. While there was found a significant impact of the roof-height variability on the tracer exchange rate from the canyon in the case of wind approaching perpendicularly to the along-canyon axis, in the case of the oblique wind the impact was insignificant.

    Permanent Link: http://hdl.handle.net/11104/0279391

     
     
Number of the records: 1  

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