About: Quantum, or classical turbulence?

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1209/0295-5075/105/46002
Description	Our experimental answer is that in thermal counterflow of superfluid He-4 both quantum and classical characteristics of turbulence can be detected simultaneously, depending on the length scale at which this quantum flow is probed. We study it at length scales l(exp) straddling two orders of magnitude across the average distance l between quantized vortices. The Lagrangian dynamics of solid deuterium particles of size d approximate to l/10 is investigated by using the particle tracking velocimetry technique. The normalized probability distribution of the particle velocity changes from the power-law shape typical of quantum turbulence, at scales l(exp) less than or similar to l, to the nearly Gaussian form typical of classical turbulent flows, at l(exp) greater than or similar to l. Our experimental answer is that in thermal counterflow of superfluid He-4 both quantum and classical characteristics of turbulence can be detected simultaneously, depending on the length scale at which this quantum flow is probed. We study it at length scales l(exp) straddling two orders of magnitude across the average distance l between quantized vortices. The Lagrangian dynamics of solid deuterium particles of size d approximate to l/10 is investigated by using the particle tracking velocimetry technique. The normalized probability distribution of the particle velocity changes from the power-law shape typical of quantum turbulence, at scales l(exp) less than or similar to l, to the nearly Gaussian form typical of classical turbulent flows, at l(exp) greater than or similar to l. (en)
Title	Quantum, or classical turbulence? Quantum, or classical turbulence? (en)
skos:prefLabel	Quantum, or classical turbulence? Quantum, or classical turbulence? (en)
skos:notation	RIV/00216208:11320/14:10291315!RIV15-GA0-11320___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP203/11/0442)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Skrbek, Ladislav La Mantia, Marco
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	41118
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10291315
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vortices; superfluid turbulence (en)
http://linked.open.../riv/klicoveSlovo	vortices superfluid turbulence
http://linked.open...odStatuVydavatele	FR - Francouzská republika
http://linked.open...ontrolniKodProRIV	[7E383D81D9E7]
http://linked.open...i/riv/nazevZdroje	Europhysics Letters
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Visualization of liquid helium flows
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	105
http://linked.open...iv/tvurceVysledku	La Mantia, Marco Skrbek, Ladislav
http://linked.open...ain/vavai/riv/wos	000333016700012
issn	0295-5075
number of pages	6 (xsd:int)
http://bibframe.org/vocab/doi	10.1209/0295-5075/105/46002
http://localhost/t...ganizacniJednotka	11320

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