About: Study on flow behind backward-facing step in a narrow channel

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Both statistics and dynamics of the flow-field behind a backward-facing step in a narrow channel is studied experimentally using time-resolved PIV technique. The channel width is 4 step heights, Reynolds number based on the step height was about 35 thousands. Secondary flow effect is detected clearly in the region behind the step resulting in strong 3D flow structure just behind the step. The low-frequency quasi-periodical structures appearing in the region behind the step and in the region of the flow reattachment close to the channel bottom are studied using the Oscillation Pattern Decomposition (OPD) technique. Strouhal numbers of those phenomena are very low, order of 0.01. Typical time-mean structures as well as dynamical structures are to be presented. Both statistics and dynamics of the flow-field behind a backward-facing step in a narrow channel is studied experimentally using time-resolved PIV technique. The channel width is 4 step heights, Reynolds number based on the step height was about 35 thousands. Secondary flow effect is detected clearly in the region behind the step resulting in strong 3D flow structure just behind the step. The low-frequency quasi-periodical structures appearing in the region behind the step and in the region of the flow reattachment close to the channel bottom are studied using the Oscillation Pattern Decomposition (OPD) technique. Strouhal numbers of those phenomena are very low, order of 0.01. Typical time-mean structures as well as dynamical structures are to be presented. (en)
Title	Study on flow behind backward-facing step in a narrow channel Study on flow behind backward-facing step in a narrow channel (en)
skos:prefLabel	Study on flow behind backward-facing step in a narrow channel Study on flow behind backward-facing step in a narrow channel (en)
skos:notation	RIV/61388998:_____/14:00437653!RIV15-GA0-61388998
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(7AMB13PL003), P(GAP101/10/1230)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Uruba, Václav
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	48381
http://linked.open...ai/riv/idVysledku	RIV/61388998:_____/14:00437653
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	backward facing step; narrow channel; dynamics; 3D structure (en)
http://linked.open.../riv/klicoveSlovo	narrow channel backward facing step dynamics 3D structure
http://linked.open...ontrolniKodProRIV	[59CF4DC66981]
http://linked.open...v/mistoKonaniAkce	Krakov
http://linked.open...i/riv/mistoVydani	Bristol
http://linked.open...i/riv/nazevZdroje	Journal of Physics: Conference Series
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Modelling of unsteady complex flows Dynamics of secondary flows in channels
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Uruba, Václav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-06-15 (xsd:date)
issn	1742-6588
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1742-6596/530/1/012024
http://purl.org/ne...btex#hasPublisher	Institute of Physics Publishing

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