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Conference Poster Year : 2019

Persistence of linear ITG mode properties in flux-driven turbulent non-linear simulations

Abstract

Objective: Find a reduced description for turbulence in tokamak plasmas Method: Analysis of GYSELA simulation 3D output  What are turbulent vortices’ dynamics?  How to reduce the description? Results: • Zonal flows act as toroidal motion, and zonal shear acts as radial motion • Zonal shear yields stationary tilt of turbulent eddies • Pressure-potential phase shift distribution is narrow, around quasi-linear value • QuaLiKiz linear prediction in qualitative agreement with GYSELA simulation
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Dates and versions

cea-02525183 , version 1 (30-03-2020)

Identifiers

  • HAL Id : cea-02525183 , version 1

Cite

C. Gillot, Guilhem Dif-Pradalier, Y. Sarazin, E. Caschera, Ph Ghendrih, et al.. Persistence of linear ITG mode properties in flux-driven turbulent non-linear simulations. 18th European Fusion Theory Conference (EFTC), Oct 2019, Ghent, Belgium. . ⟨cea-02525183⟩
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