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Poster communications

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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Poster communications
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https://hal-cea.archives-ouvertes.fr/cea-02525183
Contributor : Valerie Icard <>
Submitted on : Monday, March 30, 2020 - 6:03:37 PM
Last modification on : Tuesday, March 30, 2021 - 3:24:11 AM

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C. Gillot, G. 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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