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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F13%3A00396486%21RIV14-GA0-61388998
rdf:type
skos:Concept n6:Vysledek
dcterms:description
It is well known that sweep and ejection are major contributors to the momentum flux in the turbulent boundary layer. In order to evaluate the contribution of these events to the total flux, the wind-tunnel data measured by PIV technique were analyzed from spatial point of view. It was revealed that both the sweep and the ejection reach up to 90% of the flux momentum inside the canyon. Moreover, the sweep and ejection pass the street in an alternative fashion. When sweep reaches maximum, the ejection falls down to minimum and vice versa. The TKE energy is also very high in these particular events, reaching 80-90% of total TKE inside the street what makes the sweep and ejection to be the most important features in the flow. It is well known that sweep and ejection are major contributors to the momentum flux in the turbulent boundary layer. In order to evaluate the contribution of these events to the total flux, the wind-tunnel data measured by PIV technique were analyzed from spatial point of view. It was revealed that both the sweep and the ejection reach up to 90% of the flux momentum inside the canyon. Moreover, the sweep and ejection pass the street in an alternative fashion. When sweep reaches maximum, the ejection falls down to minimum and vice versa. The TKE energy is also very high in these particular events, reaching 80-90% of total TKE inside the street what makes the sweep and ejection to be the most important features in the flow.
dcterms:title
On the quadrant analysis of the flow in the street canyon On the quadrant analysis of the flow in the street canyon
skos:prefLabel
On the quadrant analysis of the flow in the street canyon On the quadrant analysis of the flow in the street canyon
skos:notation
RIV/61388998:_____/13:00396486!RIV14-GA0-61388998
n6:predkladatel
n7:ico%3A61388998
n3:aktivita
n12:P n12:I
n3:aktivity
I, P(GAP101/12/1554)
n3:dodaniDat
n14:2014
n3:domaciTvurceVysledku
n5:4644972 n5:2634163 n5:6494315 n5:5538408
n3:druhVysledku
n4:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
93945
n3:idVysledku
RIV/61388998:_____/13:00396486
n3:jazykVysledku
n9:eng
n3:klicovaSlova
atmospheric boundary layer; wind tunnel modelling; urban area ventilation; quadrant analysis
n3:klicoveSlovo
n15:atmospheric%20boundary%20layer n15:urban%20area%20ventilation n15:wind%20tunnel%20modelling n15:quadrant%20analysis
n3:kontrolniKodProRIV
[23113800FA59]
n3:mistoKonaniAkce
Liberec
n3:mistoVydani
Liberec
n3:nazevZdroje
EFM12 - EXPERIMENTAL FLUID MECHANICS 2012
n3:obor
n11:BK
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
5
n3:projekt
n20:GAP101%2F12%2F1554
n3:rokUplatneniVysledku
n14:2013
n3:tvurceVysledku
Kukačka, Libor Kellnerová, Radka Uruba, Václav Fuka, V. Jaňour, Zbyněk
n3:typAkce
n8:EUR
n3:wos
000319932200132
n3:zahajeniAkce
2013-11-20+01:00
s:issn
2100-014X
s:numberOfPages
5
n16:doi
10.1051/epjconf/20134501132
n17:hasPublisher
Technická univerzita v Liberci
n22:isbn
978-80-7372-912-7