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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F09%3A00207001%21RIV10-MSM-11320___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
Boundary layer over two types of urban roughness in wind-tunnel is investigated. The roughness is composed from rows of street canyons with two shapes of roof- flat and pitched. Momentum flux and corresponding transport exhibits diverse development, extension and magnitude as well. Ventilation in streets is therefore distinct from each other. Flat roofs generate rather larger eddies in street canyon, which does not disturb the ventilation significantly. Adversely, geometry of pitched roofs enables to wind to attack on the core of recirculation zone and break it. Quadrant analysis is applied for vertical profiles and cross-sectional areas in canyons in order to detect a domination of sweep or ejection events and to find a linkage to the third moment of velocity for both cases. Boundary layer over two types of urban roughness in wind-tunnel is investigated. The roughness is composed from rows of street canyons with two shapes of roof- flat and pitched. Momentum flux and corresponding transport exhibits diverse development, extension and magnitude as well. Ventilation in streets is therefore distinct from each other. Flat roofs generate rather larger eddies in street canyon, which does not disturb the ventilation significantly. Adversely, geometry of pitched roofs enables to wind to attack on the core of recirculation zone and break it. Quadrant analysis is applied for vertical profiles and cross-sectional areas in canyons in order to detect a domination of sweep or ejection events and to find a linkage to the third moment of velocity for both cases.
dcterms:title
Quadratic analysis of boundary layer above pitched and flat roofs Quadratic analysis of boundary layer above pitched and flat roofs
skos:prefLabel
Quadratic analysis of boundary layer above pitched and flat roofs Quadratic analysis of boundary layer above pitched and flat roofs
skos:notation
RIV/00216208:11320/09:00207001!RIV10-MSM-11320___
n3:aktivita
n16:Z
n3:aktivity
Z(MSM0021620860)
n3:cisloPeriodika
4
n3:dodaniDat
n11:2010
n3:domaciTvurceVysledku
n17:4644972 n17:2634163
n3:druhVysledku
n12:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
337768
n3:idVysledku
RIV/00216208:11320/09:00207001
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Quadratic; analysis; boundary; layer; above; pitched; roofs
n3:klicoveSlovo
n6:roofs n6:analysis n6:pitched n6:layer n6:above n6:Quadratic n6:boundary
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[49A0844FC6EA]
n3:nazevZdroje
Acta Technica ČSAV
n3:obor
n7:DH
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n11:2009
n3:svazekPeriodika
54
n3:tvurceVysledku
Kellnerová, Radka Jaňour, Zbyněk Kukačka, Libor
n3:zamer
n10:MSM0021620860
s:issn
0001-7043
s:numberOfPages
13
n13:organizacniJednotka
11320