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  • The objective of this experimental study is to determine processes of a vertical turbulent pollution transport above the X-shaped street intersection in an idealised symmetric urban area for several approach flow directions. An experimental set-up for simultaneous measurement of the flow velocity and the tracer gas con-centration in a high temporal resolution is assembled. Vertical turbulent scalar fluxes are computed from the measured data in a horizontal plane above the street intersection. The quadrant analysis was applied to the vertical turbulent pollution fluxes data. Events with dominant contribution to vertical turbulent pollution flux were detected. The mean duration, repetition frequency and the duration percentage were computed for these events. A strong influence of the approach flow direction on the type of dominant events and their characteristics was resolved.
  • The objective of this experimental study is to determine processes of a vertical turbulent pollution transport above the X-shaped street intersection in an idealised symmetric urban area for several approach flow directions. An experimental set-up for simultaneous measurement of the flow velocity and the tracer gas con-centration in a high temporal resolution is assembled. Vertical turbulent scalar fluxes are computed from the measured data in a horizontal plane above the street intersection. The quadrant analysis was applied to the vertical turbulent pollution fluxes data. Events with dominant contribution to vertical turbulent pollution flux were detected. The mean duration, repetition frequency and the duration percentage were computed for these events. A strong influence of the approach flow direction on the type of dominant events and their characteristics was resolved. (en)
Title
  • Quadrant analysis of turbulent pollution flux above the modelled street intersection
  • Quadrant analysis of turbulent pollution flux above the modelled street intersection (en)
skos:prefLabel
  • Quadrant analysis of turbulent pollution flux above the modelled street intersection
  • Quadrant analysis of turbulent pollution flux above the modelled street intersection (en)
skos:notation
  • RIV/61388998:_____/12:00388712!RIV13-AV0-61388998
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GAP101/12/1554), Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 163714
http://linked.open...ai/riv/idVysledku
  • RIV/61388998:_____/12:00388712
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • air pollution; atmospheric boundary layer; wind tunnel modelling; contaminant spreading; quadrant analysis (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [195663250238]
http://linked.open...v/mistoKonaniAkce
  • Hradec Králové
http://linked.open...i/riv/mistoVydani
  • Liberec
http://linked.open...i/riv/nazevZdroje
  • Experimental Fluid Mechanics 2012
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Jaňour, Zbyněk
  • Jurčáková, Klára
  • Kellnerová, Radka
  • Kukačka, Libor
  • Nosek, Štěpán
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • Technická univerzita v Liberci
https://schema.org/isbn
  • 978-80-7372-912-7
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