Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid He-4
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10130784" target="_blank" >RIV/00216208:11320/12:10130784 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.85.014501" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.85.014501</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.85.014501" target="_blank" >10.1103/PhysRevB.85.014501</a>
Alternative languages
Result language
angličtina
Original language name
Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid He-4
Original language description
We present measurements of the drag forces on quartz tuning forks oscillating at low velocities in normal and superfluid He-4. We have investigated the dissipative drag over a wide range of frequencies, from 6.5 to 600 kHz, by using arrays of forks withvarying prong lengths and by exciting the forks in their fundamental and first overtone modes. At low frequencies the behavior is dominated by laminar hydrodynamic drag, governed by the fluid viscosity. At higher frequencies acoustic drag is dominant andis described well by a three-dimensional model of sound emission.
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
BK - Liquid mechanics
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>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 - Condensed Matter and Materials Physics
ISSN
1098-0121
e-ISSN
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Volume of the periodical
85
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000298920900001
EID of the result in the Scopus database
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