About: Lagrangian velocity distributions in thermal counterflow of superfluid He-4

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1051/epjconf/20134501005
Description	Quantum turbulence in thermal counterflow of superfluid He-4 is visualized and studied at length scales comparable to the average distance between quantized vortices. The lagrangian velocities of micrometer-sized deuterium particles are obtained in a planar section of the flow field by using the particle tracking velocimetry technique. It is shown that the lagrangian velocity normalized distributions are strongly non-gaussian, with power-law tails, in contrast to the nearly gaussian distributions obtained in classical turbulent flows. The average distance between quantized vortices can therefore be seen as the length scale indicating the transition between classical-like and quantum behavior in thermal counterflow of superfluid He-4. Quantum turbulence in thermal counterflow of superfluid He-4 is visualized and studied at length scales comparable to the average distance between quantized vortices. The lagrangian velocities of micrometer-sized deuterium particles are obtained in a planar section of the flow field by using the particle tracking velocimetry technique. It is shown that the lagrangian velocity normalized distributions are strongly non-gaussian, with power-law tails, in contrast to the nearly gaussian distributions obtained in classical turbulent flows. The average distance between quantized vortices can therefore be seen as the length scale indicating the transition between classical-like and quantum behavior in thermal counterflow of superfluid He-4. (en)
Title	Lagrangian velocity distributions in thermal counterflow of superfluid He-4 Lagrangian velocity distributions in thermal counterflow of superfluid He-4 (en)
skos:prefLabel	Lagrangian velocity distributions in thermal counterflow of superfluid He-4 Lagrangian velocity distributions in thermal counterflow of superfluid He-4 (en)
skos:notation	RIV/00216208:11320/13:10173325!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP203/11/0442)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Rotter, Miloš Skrbek, Ladislav Duda, Daniel La Mantia, Marco
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	84229
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10173325
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	particle tracking velocimetry; quantum vortices; Lagrangian velocity; Quantum turbulence (en)
http://linked.open.../riv/klicoveSlovo	particle tracking velocimetry Quantum turbulence Lagrangian velocity quantum vortices
http://linked.open...ontrolniKodProRIV	[5453D6218FF1]
http://linked.open...v/mistoKonaniAkce	Hradec Kralove
http://linked.open...i/riv/mistoVydani	CEDEX A
http://linked.open...i/riv/nazevZdroje	EFM12 - EXPERIMENTAL FLUID MECHANICS 2012
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Visualization of liquid helium flows
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	La Mantia, Marco Rotter, Miloš Skrbek, Ladislav Duda, Daniel
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open...ain/vavai/riv/wos	000319932200005
http://linked.open.../riv/zahajeniAkce	2013-11-20 (xsd:date)
issn	2100-014X
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.1051/epjconf/20134501005
http://purl.org/ne...btex#hasPublisher	E D P SCIENCES
https://schema.org/isbn	978-80-7372-912-7
http://localhost/t...ganizacniJednotka	11320

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