Visualization of a Coflow Jet in Superfluid Helium
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10408211" target="_blank" >RIV/00216208:11320/19:10408211 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=b-ZzMifJyd" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=b-ZzMifJyd</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10909-018-02118-x" target="_blank" >10.1007/s10909-018-02118-x</a>
Alternative languages
Result language
angličtina
Original language name
Visualization of a Coflow Jet in Superfluid Helium
Original language description
We present preliminary results of the visualization of a submerged coflow jet of liquid helium produced by a fountain pump. The jet propagating inside the bulk superfluid is visualized with particle tracking velocimetry using hydrogen particles. We compare the characteristics of the coflow jet with those measured in classical fluids such as helium gas or water. In contrast to the classical experiments, a temperature-dependent angle of the jet is observed, suggesting that the flow may not be described quasi-classically, despite the strong coupling between normal and superfluid components by mutual friction. We report on the statistics of the velocities inferred from the particle trajectories recorded by a high-speed camera at 1.68 and 1.95K, for jet velocities ranging from 47 to 4500mm/s.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Low Temperature Physics
ISSN
0022-2291
e-ISSN
—
Volume of the periodical
196
Issue of the periodical within the volume
1-2
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
197-203
UT code for WoS article
000471633000025
EID of the result in the Scopus database
2-s2.0-85058400612