The critical velocity of transition to turbulence in 3He-4He liquid solutions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00543584" target="_blank" >RIV/68378271:_____/20:00543584 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/10.0001906" target="_blank" >https://doi.org/10.1063/10.0001906</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/10.0001906" target="_blank" >10.1063/10.0001906</a>

Result language
angličtina
Original language name
The critical velocity of transition to turbulence in 3He-4He liquid solutions
Original language description
The transition between laminar and turbulent flows around a quartz tuning fork vibrating with frequency omega in superfluid He-4 and concentrated solutions (5 and 15% He-3 in He-4) in the temperature range 0.3-2.3 K has been studied. The temperature dependences of the amplitude of the critical transition velocity v(cr) are obtained. The relationship v(cr) similar to root(eta omega/rho) is shown to be applicable for the description of these dependences in concentrated solutions of He-3 in He-4 with density rho and viscosity eta, but this formula does not hold for the temperature dependence of v(cr) in pure He-4 over the entire temperature range explored. It is also shown that in contrast to pure He-4 temperature has virtually no effect in concentrated He-3-He-4 solutions on the drag coefficient in both laminar and turbulent regimes.n
Czech name
—
Czech description
—

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.)

Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)