Small-scale universality of particle dynamics in quantum turbulence

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10335598" target="_blank" >RIV/00216208:11320/16:10335598 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.94.184512" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.94.184512</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.94.184512" target="_blank" >10.1103/PhysRevB.94.184512</a>

Result language
angličtina
Original language name
Small-scale universality of particle dynamics in quantum turbulence
Original language description
We show that, in turbulent two-fluid flows of superfluid He-4, the statistically described dynamics of small particles suspended in the liquid does not depend on the type of imposed flow, at scales smaller than the average distance between quantized vortices, the quantum length scale of the flow. More precisely, regardless of the mechanically or thermally driven nature of the large-scale flow, the tails of the observed particle velocity statistical distributions, indicating the occurrence of large-magnitude events in the proximity of quantized vortices, display the same power-law shape, characteristic of the quantum description of superfluid He-4. This property of quantum turbulence can be linked to the small-scale universality observed in classical turbulent flows of viscous fluids.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BK - Liquid mechanics
OECD FORD branch
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Project
<a href="/en/project/GA16-00580S" target="_blank" >GA16-00580S: Quantum turbulence boundaries</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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