Quantum-Classical Ultimate Turbulence Analogies in Heat Transfer
Project goals
The project synergicaly connects theoretical and experimental research into ultimate regimes of transport of heat by turbulent flows of classical and quantum fluids at cryogenic temperatures. The aims are (i) to formulate a unfied model describing the heat trasnfer laws in quantum fluid (superfluid helium-4, in the so-called "quantum counterflow") and in a classical fluid (normal gaseous helium-4 in the Rayleigh-Benard convection), (ii) development of a novel and potentially groundbreaking experimental method of flow field visualisation, using laser-induced fluorescence of long-lived metastable molecular excimers He_2*, suitable for both the classical and quantum flow.
Keywords
turbulenceRayleigh-Benard convection (RBC)laser-induced fluorescenceheat transportQuantum counterflow in He-IIclassical and quantum fluidsOberbeck-Boussinesq approximationsuperfluidityKraichnan ultimate regime of RBCcryogenic helium-4flow visualization
Public support
Provider
Ministry of Education, Youth and Sports
Programme
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Call for proposals
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Main participants
Ústav přístrojové techniky AV ČR, v. v. i.
Contest type
OP - EU Operational Programme
Contract ID
18_070/0009944-01
Alternative language
Project name in Czech
Kvantovo-klasické analogie v mezních režimech přenosu tepla turbulentním prouděním
Annotation in Czech
Projekt propojuje teoretický a experimentální výzkum mezních režimů přenosu tepla turbulentním prouděním klasických a kvantových tekutin za nízkých teplot. Cílem je jednak formulace jednotného popisu zákonů přenosu tepla v kvantové kapalině (v supratekutém heliu-4 v procesu tzv. tepelného protiproudu) a v klasické kapalině (normálním plynném heliu-4 v procesu Rayleigh-Bénardovy konvekce), jednak rozvoj nové a potenciálně průlomové experimentální metody vizualizace obou typů proudění.
Scientific branches
R&D category
ZV - Basic research
OECD FORD - main branch
10305 - Fluids and plasma physics (including surface physics)
OECD FORD - secondary branch
10306 - Optics (including laser optics and quantum optics)
OECD FORD - another secondary branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
BH - Optics, masers and lasers
BK - Liquid mechanics
BL - Plasma physics and discharge through gases
BM - Solid-state physics and magnetism
Completed project evaluation
Provider evaluation
V - Vynikající výsledky projektu (s mezinárodním významem atd.)
Project results evaluation
The project was successfully completed, the planned mobility was successfully implemented. One senior researcher from abroad was supported within the qCULTURA project. The aim of the project was to combine theoretical and experimental research of limit regimes of heat transfer by turbulent flow of classical and quantum fluids at low temperatures. The implementation of the project brought very interesting results, which were published in impact journals and presented at 3 conferences.
Solution timeline
Realization period - beginning
Oct 1, 2018
Realization period - end
Jul 31, 2021
Project status
U - Finished project
Latest support payment
Feb 17, 2020
Data delivery to CEP
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data delivery code
CEP22-MSM-EF-U
Data delivery date
Jun 30, 2022
Finance
Total approved costs
4,084 thou. CZK
Public financial support
4,084 thou. CZK
Other public sources
0 thou. CZK
Non public and foreign sources
205 thou. CZK
Basic information
Recognised costs
4 084 CZK thou.
Public support
4 084 CZK thou.
100%
Provider
Ministry of Education, Youth and Sports
OECD FORD
Fluids and plasma physics (including surface physics)
Solution period
01. 10. 2018 - 31. 07. 2021