About: A study of thermal counterflow using particle tracking velocimetry

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About: A study of thermal counterflow using particle tracking velocimetry Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The motion of solid hydrogen particles in He II thermal counterflow has been measured using the particle tracking velocimetry technique. The tracers can move with the velocity comparable to the velocity of the normal fluid. However, below some transition velocity, the particles can be trapped on individual vortex lines and towed by the vortex tangle in the direction of superfluid flow. Above this transition velocity, the Stokes drag with the normal fluid dislodges the trapped particles from vortex cores and such particles move in the same direction as the normal fluid, albeit with lower average velocity. We discuss the measurement of the transition velocity and the mechanism by which tracers may be trapped by or dislodged from quantized vortices. The motion of solid hydrogen particles in He II thermal counterflow has been measured using the particle tracking velocimetry technique. The tracers can move with the velocity comparable to the velocity of the normal fluid. However, below some transition velocity, the particles can be trapped on individual vortex lines and towed by the vortex tangle in the direction of superfluid flow. Above this transition velocity, the Stokes drag with the normal fluid dislodges the trapped particles from vortex cores and such particles move in the same direction as the normal fluid, albeit with lower average velocity. We discuss the measurement of the transition velocity and the mechanism by which tracers may be trapped by or dislodged from quantized vortices. (en)
Title	A study of thermal counterflow using particle tracking velocimetry A study of thermal counterflow using particle tracking velocimetry (en)
skos:prefLabel	A study of thermal counterflow using particle tracking velocimetry A study of thermal counterflow using particle tracking velocimetry (en)
skos:notation	RIV/68378271:_____/11:00371284!RIV12-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z10100520)
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Chagovets, Tymofiy
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	184192
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00371284
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	tracer particles; PTV; superfluid helium (en)
http://linked.open.../riv/klicoveSlovo	PTV superfluid helium tracer particles
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[7C22A2FB42A1]
http://linked.open...i/riv/nazevZdroje	Physics of Fluids
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	23
http://linked.open...iv/tvurceVysledku	Chagovets, Tymofiy Van Sciver, S. W.
http://linked.open...ain/vavai/riv/wos	000296528000030
http://linked.open...n/vavai/riv/zamer	Specific effects in condensed systems with reduced dimension and broken symmetry
issn	1070-6631
number of pages	5 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.3657084
is http://linked.open...avai/riv/vysledek of	A study of thermal counterflow using particle tracking velocimetry A study of thermal counterflow using particle tracking velocimetry

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