Spherical thermal counterflow of superfluid 4He

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10479482" target="_blank" >RIV/00216208:11320/24:10479482 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vPptFT.7q6" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=vPptFT.7q6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevFluids.9.L022601" target="_blank" >10.1103/PhysRevFluids.9.L022601</a>

Result language
angličtina
Original language name
Spherical thermal counterflow of superfluid 4He
Original language description
We generate quantum turbulence in spherically symmetric thermal counterflow of superfluid 4He driven by a central heater and probe it by second sound attenuation. We show that normal fluid turbulence forms above a certain critical threshold and, in the absence of shear flow, draws energy from a preexisting random tangle of quantized vortices corresponding to Vinen-type turbulence. This experiment can serve as a model flow for cosmological phenomena relating cosmic strings to quantized vortices, for processes occurring in neutron stars, or cosmological structure formation within superfluid models of dark matter.
Czech name
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Czech description
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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
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)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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