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Article Dans Une Revue Nuclear Fusion Année : 2023

Low-frequency turbulence suppression by amplification of synchronized zonal flow with energetic particle driven modes

A. Ghizzo
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D. Del Sarto

Résumé

We investigate the suppression of the turbulent transport associated to the emergence of spontaneous internal transport barriers, due to the combined collective effects played by trapped electrons and energetic passing ions. Numerical experiments performed with a ‘particle mode’ model based on a double gyro-average over the fast cyclotron phase and over the bounce (or transit) phases are used to show the role played by energetic particles in the suppression of the ion-temperature-gradient driven turbulence. We show this occur via phase locking in a Kuramoto-type synchronization process.
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Origine : Publication financée par une institution
Licence : CC BY - Paternité

Dates et versions

hal-04545536 , version 1 (14-04-2024)

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A. Ghizzo, D. Del Sarto. Low-frequency turbulence suppression by amplification of synchronized zonal flow with energetic particle driven modes. Nuclear Fusion, 2023, 63 (10), pp.104002. ⟨10.1088/1741-4326/acee95⟩. ⟨hal-04545536⟩
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