Streaming flow due to a quartz tuning fork oscillating in normal and superfluid He-4

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10368508" target="_blank" >RIV/00216208:11320/17:10368508 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.96.024519" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.96.024519</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.96.024519" target="_blank" >10.1103/PhysRevB.96.024519</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Streaming flow due to a quartz tuning fork oscillating in normal and superfluid He-4

Popis výsledku v původním jazyce

We visualize the streaming flow due to a rapidly oscillating quartz tuning fork, in both normal He I and superfluid He II, by following the flow-induced motions of relatively small particles suspended in the liquid. Over the investigated temperature range, between 1.2 and 2.3 K, at the experimentally probed length scales, the streaming patterns observed in He II appear identical to those seen in He I and are very similar to those reported to occur in water, outside the Stokes boundary layer. The outcome strongly supports the view that, at scales larger than the quantum length scale of the flow, the mean distance between quantized vortices, mechanically forced turbulent coflows of He II behave classically, due to the dynamical locking of the two components of superfluid He-4 by the action of the mutual friction force.

Název v anglickém jazyce

Streaming flow due to a quartz tuning fork oscillating in normal and superfluid He-4

Popis výsledku anglicky

We visualize the streaming flow due to a rapidly oscillating quartz tuning fork, in both normal He I and superfluid He II, by following the flow-induced motions of relatively small particles suspended in the liquid. Over the investigated temperature range, between 1.2 and 2.3 K, at the experimentally probed length scales, the streaming patterns observed in He II appear identical to those seen in He I and are very similar to those reported to occur in water, outside the Stokes boundary layer. The outcome strongly supports the view that, at scales larger than the quantum length scale of the flow, the mean distance between quantized vortices, mechanically forced turbulent coflows of He II behave classically, due to the dynamical locking of the two components of superfluid He-4 by the action of the mutual friction force.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/GA16-00580S" target="_blank" >GA16-00580S: Hranice kvantové turbulence</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

neuveden

Číslo periodika v rámci svazku

96

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

—

Kód UT WoS článku

000411600300008

EID výsledku v databázi Scopus

2-s2.0-85027370761