About: PIV measurement of turbulent flow within a street canyon: detection of coherent motion

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
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 (en)
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 (en)
skos:notation	RIV/61388998:_____/11:00363538!RIV12-AV0-61388998
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z20760514)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kukačka, Libor Kellnerová, Radka Jaňour, Zbyněk Uruba, Václav Jurčáková, Klára
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav termomechaniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	220441
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/11:00363538
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	wind-channel; street canyon; wavelet analysis; POD (en)
http://linked.open.../riv/klicoveSlovo	POD street canyon wind-channel wavelet analysis
http://linked.open...ontrolniKodProRIV	[DA386803B76B]
http://linked.open...v/mistoKonaniAkce	Amsterdam
http://linked.open...i/riv/mistoVydani	Amsterdam
http://linked.open...i/riv/nazevZdroje	13th International Conference on Wind Engineerin
http://linked.open...in/vavai/riv/obor	DG
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Jaňour, Zbyněk Jurčáková, Klára Kellnerová, Radka Kukačka, Libor Uruba, Václav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-07-10 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Complex dynamical systems in thermodynamics, fluid and solid mechanics
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Multi-Science Publishing Co Ltd
https://schema.org/isbn	978-1-907132-33-9

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