About: Lagrangian accelerations of particles in superfluid turbulence

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1017/jfm.2013.31
Description	Quantum turbulence in thermal counterflow of superfluid He-4 is studied at length scales comparable to the mean distance l between quantized vortices. The Lagrangian dynamics of solid deuterium particles, of radius R-p about one order of magnitude smaller than l, is analysed in a planar section of the experimental volume by using the particle tracking velocimetry technique. We show that the average amplitude of the acceleration of the particles seems to increase as the temperature decreases and applied heat flux increases and this can be explained by exploiting the two-fluid model of superfluid He-4. We also report that, at the probed length scales, the normalized distribution of the acceleration of the particles appears to follow an unexpected classical-like behaviour. Quantum turbulence in thermal counterflow of superfluid He-4 is studied at length scales comparable to the mean distance l between quantized vortices. The Lagrangian dynamics of solid deuterium particles, of radius R-p about one order of magnitude smaller than l, is analysed in a planar section of the experimental volume by using the particle tracking velocimetry technique. We show that the average amplitude of the acceleration of the particles seems to increase as the temperature decreases and applied heat flux increases and this can be explained by exploiting the two-fluid model of superfluid He-4. We also report that, at the probed length scales, the normalized distribution of the acceleration of the particles appears to follow an unexpected classical-like behaviour. (en)
Title	Lagrangian accelerations of particles in superfluid turbulence Lagrangian accelerations of particles in superfluid turbulence (en)
skos:prefLabel	Lagrangian accelerations of particles in superfluid turbulence Lagrangian accelerations of particles in superfluid turbulence (en)
skos:notation	RIV/00216208:11320/13:10173297!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...iv/cisloPeriodika	R9
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	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	84227
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10173297
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	vortex dynamics; quantum fluids; particle/fluid flow (en)
http://linked.open.../riv/klicoveSlovo	vortex dynamics particle/fluid flow quantum fluids
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[191F1C566EE6]
http://linked.open...i/riv/nazevZdroje	Journal of Fluid Mechanics
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...v/svazekPeriodika	717
http://linked.open...iv/tvurceVysledku	La Mantia, Marco Rotter, Miloš Skrbek, Ladislav Duda, Daniel
http://linked.open...ain/vavai/riv/wos	000317421600009
issn	0022-1120
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1017/jfm.2013.31
http://localhost/t...ganizacniJednotka	11320

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