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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F12%3A00376042%21RIV13-AV0-61388998
rdf:type
n5:Vysledek skos:Concept
dcterms:description
The objective of this study is to determine processes of pollution ventilation in the X-shaped street intersection within an idealized symmetric urban area for the changing approach flow direction. A unique experimental set-up for simultaneous wind tunnel measurement of the flow velocity and the tracer gas concentration in a high temporal resolution is assembled. Advective horizontal and vertical scalar fluxes are computed from averaged measured velocity and concentration data within the street intersection. Vertical turbulent scalar fluxes are computed from synchronized velocity and concentration signals measured in the plane above the intersection. All results are obtained for five approach flow directions. The influence of the approach flow to the advective and turbulent fluxes is determined. The contribution of the advective and turbulent flux to the ventilation is discussed. Wind direction with the best dispersive conditions in the area is found. The objective of this study is to determine processes of pollution ventilation in the X-shaped street intersection within an idealized symmetric urban area for the changing approach flow direction. A unique experimental set-up for simultaneous wind tunnel measurement of the flow velocity and the tracer gas concentration in a high temporal resolution is assembled. Advective horizontal and vertical scalar fluxes are computed from averaged measured velocity and concentration data within the street intersection. Vertical turbulent scalar fluxes are computed from synchronized velocity and concentration signals measured in the plane above the intersection. All results are obtained for five approach flow directions. The influence of the approach flow to the advective and turbulent fluxes is determined. The contribution of the advective and turbulent flux to the ventilation is discussed. Wind direction with the best dispersive conditions in the area is found.
dcterms:title
Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation
skos:prefLabel
Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation
skos:notation
RIV/61388998:_____/12:00376042!RIV13-AV0-61388998
n5:predkladatel
n11:ico%3A61388998
n3:aktivita
n15:Z
n3:aktivity
Z(AV0Z20760514)
n3:dodaniDat
n18:2013
n3:domaciTvurceVysledku
n6:8949573 n6:5538408 n6:2634163 n6:4644972 n6:6974783
n3:druhVysledku
n20:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
175337
n3:idVysledku
RIV/61388998:_____/12:00376042
n3:jazykVysledku
n7:eng
n3:klicovaSlova
air pollution; atmospheric boundary layer; wind tunnel modelling; contaminant spreading; scalar fluxes; street canyon; street intersection; urban area ventilation
n3:klicoveSlovo
n4:atmospheric%20boundary%20layer n4:scalar%20fluxes n4:wind%20tunnel%20modelling n4:street%20intersection n4:contaminant%20spreading n4:urban%20area%20ventilation n4:air%20pollution n4:street%20canyon
n3:kontrolniKodProRIV
[FD1BBA49449D]
n3:mistoKonaniAkce
Atheny
n3:mistoVydani
Hatfield
n3:nazevZdroje
8th International Conference on Air Quality Science and Application
n3:obor
n14:DG
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n18:2012
n3:tvurceVysledku
Kellnerová, Radka Jaňour, Zbyněk Nosek, Štěpán Kukačka, Libor Jurčáková, Klára
n3:typAkce
n19:WRD
n3:zahajeniAkce
2012-03-19+01:00
n3:zamer
n12:AV0Z20760514
s:numberOfPages
4
n17:hasPublisher
University of Hertfordshire
n21:isbn
978-1-907396-80-9