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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F11%3A00363538%21RIV12-AV0-61388998
rdf:type
n12:Vysledek skos:Concept
dcterms:description
2-dimensional PIV measurement is performed in wind-channel with model of street canyons. Two geometries - flat and pitched roof - are tested in terms of flow dynamics. Velocity vector fields in vertical planes within canyons are analysed by Quadrant technique, Wavelet analysis and Proper Orthogonal Decomposition (POD). Wavelet analysis with Morlet function is applied on velocity data. Physical interpretation was done with help of PIV records. Most energetic events in the flow can be assigned to the sweep and ejection events. Vortices are not rare, however they do not bring energy in a quasi-periodic manner to be nicely detected by Morlet wavelet. POD is applied either on velocity data either on vorticity field. Rather a significant distinction between dynamics above two shapes of roof is found out. 2-dimensional PIV measurement is performed in wind-channel with model of street canyons. Two geometries - flat and pitched roof - are tested in terms of flow dynamics. Velocity vector fields in vertical planes within canyons are analysed by Quadrant technique, Wavelet analysis and Proper Orthogonal Decomposition (POD). Wavelet analysis with Morlet function is applied on velocity data. Physical interpretation was done with help of PIV records. Most energetic events in the flow can be assigned to the sweep and ejection events. Vortices are not rare, however they do not bring energy in a quasi-periodic manner to be nicely detected by Morlet wavelet. POD is applied either on velocity data either on vorticity field. Rather a significant distinction between dynamics above two shapes of roof is found out.
dcterms:title
PIV measurement of turbulent flow within a street canyon: detection of coherent motion PIV measurement of turbulent flow within a street canyon: detection of coherent motion
skos:prefLabel
PIV measurement of turbulent flow within a street canyon: detection of coherent motion PIV measurement of turbulent flow within a street canyon: detection of coherent motion
skos:notation
RIV/61388998:_____/11:00363538!RIV12-AV0-61388998
n12:predkladatel
n13:ico%3A61388998
n3:aktivita
n14:Z
n3:aktivity
Z(AV0Z20760514)
n3:dodaniDat
n5:2012
n3:domaciTvurceVysledku
n19:2634163 n19:8949573 n19:5538408 n19:4644972 n19:6494315
n3:druhVysledku
n4:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
220441
n3:idVysledku
RIV/61388998:_____/11:00363538
n3:jazykVysledku
n6:eng
n3:klicovaSlova
wind-channel; street canyon; wavelet analysis; POD
n3:klicoveSlovo
n7:POD n7:street%20canyon n7:wavelet%20analysis n7:wind-channel
n3:kontrolniKodProRIV
[DA386803B76B]
n3:mistoKonaniAkce
Amsterdam
n3:mistoVydani
Amsterdam
n3:nazevZdroje
13th International Conference on Wind Engineerin
n3:obor
n15:DG
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n5:2011
n3:tvurceVysledku
Uruba, Václav Jaňour, Zbyněk Kukačka, Libor Kellnerová, Radka Jurčáková, Klára
n3:typAkce
n9:WRD
n3:zahajeniAkce
2011-07-10+02:00
n3:zamer
n16:AV0Z20760514
s:numberOfPages
8
n21:hasPublisher
Multi-Science Publishing Co Ltd
n20:isbn
978-1-907132-33-9