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7 papers · 2 filters
Global linear stability analysis of kinetic Trapped Ion Mode (TIM) turbulence in tokamak plasma using spectral method
D. Mandal, M. Lesur, E. Gravier +4
Trapped ion modes (TIM) belong to the family of ion temperature gradient (ITG) modes, which are one of the important ingredients in heat turbulent transport at the ion scale in tok…
Integrated modelling and multiscale gyrokinetic validation study of ETG turbulence in a JET hybrid H-mode scenario
J Citrin, S Maeyama, C Angioni +11
Previous studies with first-principle-based integrated modelling suggested that ETG turbulence may lead to an anti-GyroBohm isotope scaling in JET high-performance hybrid H-mode sc…
The Problem of Marginality in Model Reductions of Turbulence
C. Gillot, G. Dif-Pradalier, Y. Sarazin +8
Reduced quasilinear (QL) and nonlinear (gradient-driven) models with scale separations, commonly used to interpret experiments and to forecast turbulent transport levels in magneti…
Development and application of a hybrid MHD-kinetic model in JOREK
T. J. Bogaarts, M. Hoelzl, G. T. A. Huijsmans +1
Energetic particle (EP) driven instabilities will be of strongly increased relevance in future burning plasmas as the EP pressure will be very large compared to the thermal plasma.…
Lagrangian particle simulation of hydrogen pellets and SPI into runaway electron beam in ITER
Shaohua Yuan, Nizar Naitlho, Roman Samulyak +5
Numerical studies of the ablation of pellets and shattered pellet injection (SPI) fragments into a runaway electron beam in ITER have been performed using a time-dependent pellet a…
Transport barrier onset and edge turbulence shortfall in fusion plasmas
Guilhem Dif-Pradalier, Philippe Ghendrih, Yanick Sarazin +7
Turbulent plasmas notably self-organize to higher energy states upon application of additional free energy sources or modification of edge operating conditions. Mechanisms whereby…