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Statements

Subject Item
n2:RIV%2F61388998%3A_____%2F13%3A00392037%21RIV14-GA0-61388998
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Pulsation of impinging jets promises to become a useful way towards achieving the highest possible rate of passive scalar convective transport between fluid and a wall. Author investigated experimentally steady and pulsated impingement by hot-wire anemometer traversing along a radial line at a small height above the impingement wall. The data have shown two conspicuous local maxima of fluctuation intensity. In an attempt to reach understanding of these phenomena, numerical flowfield computations were also made, fitted to the experimental conditions. Despite simplification (isotropic handling of unsteadiness, eddies computed as Reynolds-type phase averages) the synergetic approach (experiment & computation) revealed interesting correlation and resulted in useful interpretations of the old problem of the off-axis extremes – and also brings new views on their behaviour in the pulsating jet case. Pulsation of impinging jets promises to become a useful way towards achieving the highest possible rate of passive scalar convective transport between fluid and a wall. Author investigated experimentally steady and pulsated impingement by hot-wire anemometer traversing along a radial line at a small height above the impingement wall. The data have shown two conspicuous local maxima of fluctuation intensity. In an attempt to reach understanding of these phenomena, numerical flowfield computations were also made, fitted to the experimental conditions. Despite simplification (isotropic handling of unsteadiness, eddies computed as Reynolds-type phase averages) the synergetic approach (experiment & computation) revealed interesting correlation and resulted in useful interpretations of the old problem of the off-axis extremes – and also brings new views on their behaviour in the pulsating jet case.
dcterms:title
Flow pulsation in the near-wall layer of impinging jets Flow pulsation in the near-wall layer of impinging jets
skos:prefLabel
Flow pulsation in the near-wall layer of impinging jets Flow pulsation in the near-wall layer of impinging jets
skos:notation
RIV/61388998:_____/13:00392037!RIV14-GA0-61388998
n16:predkladatel
n17:ico%3A61388998
n3:aktivita
n7:Z n7:P n7:I
n3:aktivity
I, P(GA13-23046S), Z(AV0Z20760514)
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n14:5522331
n3:druhVysledku
n18:D
n3:duvernostUdaju
n23:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
75322
n3:idVysledku
RIV/61388998:_____/13:00392037
n3:jazykVysledku
n11:eng
n3:klicovaSlova
impinging jets; flow pulsation; numerical computation
n3:klicoveSlovo
n6:flow%20pulsation n6:numerical%20computation n6:impinging%20jets
n3:kontrolniKodProRIV
[DCC4DF92B278]
n3:mistoKonaniAkce
Hradec Králové
n3:mistoVydani
Liberec
n3:nazevZdroje
EFM12 - EXPERIMENTAL FLUID MECHANICS 2012
n3:obor
n20:BK
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:projekt
n19:GA13-23046S
n3:rokUplatneniVysledku
n12:2013
n3:tvurceVysledku
Tesař, Václav
n3:typAkce
n21:WRD
n3:wos
000319932200129
n3:zahajeniAkce
2012-11-20+01:00
n3:zamer
n22:AV0Z20760514
s:issn
2100-014X
s:numberOfPages
12
n10:doi
10.1051/epjconf/20134501129
n13:hasPublisher
Technická univerzita v Liberci
n15:isbn
978-80-7372-912-7