Fast nondiffusive response of heat and turbulence pulse propagation.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
06 Jun 2024
06 Jun 2024
Historique:
received:
13
12
2023
accepted:
03
06
2024
medline:
7
6
2024
pubmed:
7
6
2024
entrez:
6
6
2024
Statut:
epublish
Résumé
The experimental findings from the Large Helical Device have demonstrated a fast, nondiffusive behavior during the propagation of heat pulses, with an observed increase in speed with reduction in their temporal width. Concurrent propagation of the temperature gradient and turbulence, in a timeframe spanning from a few milliseconds to tens of milliseconds, aligned with the avalanche model. These results indicate that the more spatiotemporally localized the heat and turbulence pulses are, the greater the deviation of the plasma from its equilibrium state, coupled with faster propagation velocity. This insight is pivotal for future fusion reactors, which necessitate the maintenance of a steady-state, non-equilibrium condition.
Identifiants
pubmed: 38844607
doi: 10.1038/s41598-024-63788-0
pii: 10.1038/s41598-024-63788-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
13006Subventions
Organisme : JSPS KEKENHI
ID : Grant Nos. 18K13525, 19KK0073, and 21K13901
Organisme : the JSPS Core-to-Core Program, A. Advanced Research Networks
ID : PLADyS
Informations de copyright
© 2024. The Author(s).
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