About: Comparative Study of Experiment And Les on Street Canyon Dynamics

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper deals with comparison between experimental data and numerical simulation concerning street canyon dynamics. Experimental data was obtained in the wind channel with Time-Resolved Particle Image Velocimetry (TR-PIV). By PIV, two components of velocity were measured in vertical plane at the axis of the channel. The almost identical boundary conditions were simulated by LES. The wind dynamics inside the street canyon was captured and then analysed by Fourier analysis, Wavelet analysis, Quadrant Reynolds decomposition, spatial and temporal correlation and Proper orthogonal decomposition (POD). These methods were consequently used for the mutual comparison between LES and experimental data was done. Some discrepancies were revealed in the time-mean values between LES and PIV. However the spectrum, momentum flux and especially POD yielded very similar results what suggests that dynamics in terms of variance was properly modelled by LES. The paper deals with comparison between experimental data and numerical simulation concerning street canyon dynamics. Experimental data was obtained in the wind channel with Time-Resolved Particle Image Velocimetry (TR-PIV). By PIV, two components of velocity were measured in vertical plane at the axis of the channel. The almost identical boundary conditions were simulated by LES. The wind dynamics inside the street canyon was captured and then analysed by Fourier analysis, Wavelet analysis, Quadrant Reynolds decomposition, spatial and temporal correlation and Proper orthogonal decomposition (POD). These methods were consequently used for the mutual comparison between LES and experimental data was done. Some discrepancies were revealed in the time-mean values between LES and PIV. However the spectrum, momentum flux and especially POD yielded very similar results what suggests that dynamics in terms of variance was properly modelled by LES. (en)
Title	Comparative Study of Experiment And Les on Street Canyon Dynamics Comparative Study of Experiment And Les on Street Canyon Dynamics (en)
skos:prefLabel	Comparative Study of Experiment And Les on Street Canyon Dynamics Comparative Study of Experiment And Les on Street Canyon Dynamics (en)
skos:notation	RIV/61388998:_____/14:00427473!RIV15-GA0-61388998
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP101/12/1554)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Nosek, Štěpán Kukačka, Libor Kellnerová, Radka Jaňour, Zbyněk Uruba, Václav
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
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	7958
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/14:00427473
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	wind-tunnel; Street canyon; PIV; LES; validation; POD (en)
http://linked.open.../riv/klicoveSlovo	wind-tunnel PIV POD validation LES Street canyon
http://linked.open...ontrolniKodProRIV	[70791EB53087]
http://linked.open...in/vavai/riv/obor	DG
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Experimental study of organised structures in turbulent boundary layer above rough surface with obstacles
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Jaňour, Zbyněk Kellnerová, Radka Kukačka, Libor Uruba, Václav Nosek, Štěpán Fuka, V.

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