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Poster communications

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

C. Gillot 1, 2 G. Dif-Pradalier 1 Y. Sarazin 1 E. Caschera 1 Ph Ghendrih 1 X. Garbet 1 V. Grandgirard 1 G. Latu 1 C. Passeron 1 C. Bourdelle 1 D. Zarzoso 3
1 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique
2 ENPC - École des Ponts ParisTech
3 PIIM - Physique des interactions ioniques et moléculaires
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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https://hal-cea.archives-ouvertes.fr/cea-02525183
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Submitted on : Monday, March 30, 2020 - 6:03:37 PM
Last modification on : Wednesday, November 3, 2021 - 5:50:54 AM

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  • HAL Id : cea-02525183, version 1

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CEA | DSM-IRFM | ENPC | PIIM | CEA-DRF | UNIV-AMU | CEA-CAD | PARISTECH | CNRS

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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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