Quantum turbulence of bellows-driven 4He superflow: steady state
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00390395" target="_blank" >RIV/68378271:_____/12:00390395 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.86.134515" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.86.134515</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.86.134515" target="_blank" >10.1103/PhysRevB.86.134515</a>
Alternative languages
Result language
angličtina
Original language name
Quantum turbulence of bellows-driven 4He superflow: steady state
Original language description
Quantum turbulence in superfluid 4He is studied by the attenuation of second sound in channels of 7-mm and 10-mm side square cross sections, and 115-mm length. The ends of the channels are plugged by sintered silver superleaks to allow a pure superflow.Flows are generated by mechanically operating a low temperature bellows assembly, as opposed to the helium fountain pump commonly used for previous superflow turbulence studies. The temperature range is 1.35 K < T < 1.95 K. The observed turbulent steadystate is characterized by the vortex line density L1/2 = ?(T)(v vc), where v is the mean superflow velocity and vc is the critical velocity for the onset of turbulence. The character of the steady state agrees with the Vinen phenomenological model for thermal counterflow turbulence. The coefficient ?(T) is in fair agreement with previous thermal pure superflow and counterflow experiments.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA202%2F08%2F0276" target="_blank" >GA202/08/0276: Selected problems of cryogenic fluid dynamics</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review. B
ISSN
1098-0121
e-ISSN
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Volume of the periodical
86
Issue of the periodical within the volume
13
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
"134515-1"-"134515-11"
UT code for WoS article
000309728800007
EID of the result in the Scopus database
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