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Statements

Subject Item
n2:RIV%2F67985858%3A_____%2F11%3A00341646%21RIV11-AV0-67985858
rdf:type
skos:Concept n14:Vysledek
dcterms:description
The motion of single air bubbles in an inclined flat water channel is investigated experimentally. The electrodiffusion technique of near-wall flow diagnostics is applied to measure the wall shear stress distribution under large bubbles rising along the upper channel wall. The electrodiffusion measurements are synchronized with the visual observation of bubble movement done by a high-speed camera. The analysis of video records provides information on the bubble shape and terminal velocity. The experiments are carried out for three different channel heights (1.5, 4, and 8 mm) and cover a wide range of channel inclination angles (from horizontal to vertical position). The experimental results on bubble motion characteristics obtained in stagnant and co-flowing liquid arrangements are confronted with the recent predictions and scaling provided by theoretical models. The motion of single air bubbles in an inclined flat water channel is investigated experimentally. The electrodiffusion technique of near-wall flow diagnostics is applied to measure the wall shear stress distribution under large bubbles rising along the upper channel wall. The electrodiffusion measurements are synchronized with the visual observation of bubble movement done by a high-speed camera. The analysis of video records provides information on the bubble shape and terminal velocity. The experiments are carried out for three different channel heights (1.5, 4, and 8 mm) and cover a wide range of channel inclination angles (from horizontal to vertical position). The experimental results on bubble motion characteristics obtained in stagnant and co-flowing liquid arrangements are confronted with the recent predictions and scaling provided by theoretical models.
dcterms:title
Experiments on Large Bubbles Rising in an Inclined Flat Channel Experiments on Large Bubbles Rising in an Inclined Flat Channel
skos:prefLabel
Experiments on Large Bubbles Rising in an Inclined Flat Channel Experiments on Large Bubbles Rising in an Inclined Flat Channel
skos:notation
RIV/67985858:_____/11:00341646!RIV11-AV0-67985858
n14:predkladatel
n15:ico%3A67985858
n3:aktivita
n13:Z n13:P
n3:aktivity
P(IAA200720801), Z(AV0Z40720504)
n3:dodaniDat
n17:2011
n3:domaciTvurceVysledku
n5:2616920 n5:9220526 n5:5908701
n3:druhVysledku
n22:D
n3:duvernostUdaju
n11:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
198929
n3:idVysledku
RIV/67985858:_____/11:00341646
n3:jazykVysledku
n19:eng
n3:klicovaSlova
two-phase flow; large flat bubbles; wall shear stress
n3:klicoveSlovo
n18:wall%20shear%20stress n18:two-phase%20flow n18:large%20flat%20bubbles
n3:kontrolniKodProRIV
[B9A415325885]
n3:mistoKonaniAkce
Berlin
n3:mistoVydani
Düsseldorf
n3:nazevZdroje
Fortschritt-berichte VDI, Reihe 3, Nr. 920
n3:obor
n12:CI
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n4:IAA200720801
n3:rokUplatneniVysledku
n17:2011
n3:tvurceVysledku
Pěnkavová, Věra Vejražka, Jiří Tihon, Jaroslav
n3:typAkce
n7:EUR
n3:zahajeniAkce
2009-10-08+02:00
n3:zamer
n20:AV0Z40720504
s:numberOfPages
14
n21:hasPublisher
VDI Verlag
n16:isbn
978-3-18-392003-7