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H 1 5D full-$f$ gyrokinetic simulation for ion turbulence and transport barrier in tokamak plasmas

Auteurs : Imadera, Kenji (Auteur de la Conférence)
CIRM (Editeur )

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    Résumé : Gyrokinetic simulation is considered to be an essential tool to study turbulent transport driven by micro-scale instabilities in tokamak plasmas. It is roughly categorized into two approaches; delta-$f$ local and full-$f$ global approaches. In full-$f$ approach, both turbulent transport and profile evolutions are solved self-consistently under the power balance between external heat source/sink. In this talk, we address (A) numerical technique to treat such full-$f$ gyrokinetic Vlasov-Poisson equations [1] and (B) characteristics of global ion-scale turbulence and transport barrier [2]. We also discuss (C) the role of stable modes in collisionless or weakly collisional plasmas [3].

    Keywords : particle simulation; plasma; turbulence

    Codes MSC :
    65Mxx - Numerical methods for IVP of PDE
    76F10 - Turbulence of shear flows
    76X05 - Ionized gas flow in electromagnetic fields; plasmic flow
    82D10 - Plasmas

      Informations sur la Vidéo

      Réalisateur : Hennenfent, Guillaume
      Langue : Anglais
      Date de publication : 02/11/2017
      Date de captation : 02/11/2017
      Collection : Research talks
      Format : MP4
      Durée : 00:34:30
      Domaine : PDE ; Mathematical Physics
      Audience : Chercheurs ; Doctorants , Post - Doctorants
      Download : https://videos.cirm-math.fr/2017-11-02_Imadera.mp4

    Informations sur la rencontre

    Nom du congrès : Collisionless Boltzmann (Vlasov) equation and modeling of self-gravitating systems and plasmas / Boltzmann sans collisions, Vlasov et modélisation des systèmes auto-gravitants et des plasmas
    Organisteurs Congrès : Colombi, Stéphane ; Devriendt, Julien ; Elskens, Yves ; Taruya, Atsushi ; Triay, Roland
    Dates : 30/10/2017 - 03/11/2017
    Année de la rencontre : 2017
    URL Congrès : http://conferences.cirm-math.fr/1683.html

    Citation Data

    DOI : 10.24350/CIRM.V.19239003
    Cite this video as: Imadera, Kenji (2017). 5D full-$f$ gyrokinetic simulation for ion turbulence and transport barrier in tokamak plasmas. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.19239003
    URI : http://dx.doi.org/10.24350/CIRM.V.19239003


    Voir aussi

    Bibliographie

    1. [1] Obrejan, K., Imadera, K., Li, J., & Kishimoto, Y. (2017). Development of a new zonal flow equation solver by diagonalisation and its application in non-circular cross-section tokamak plasmas. Computer Physics Communications, 216, 8-17 - https://doi.org/10.1016/j.cpc.2017.02.010

    2. [2] Imadera, K., Li, J., & Kishimoto, Y. (2016). ITB formation in gyrokinetic flux-driven ITG turbulence. In 26th IAEA Fusion Energy Conference (TH/P3-3). Kyoto: Kyoto International Conference Center - https://nucleus.iaea.org/sites/fusionportal/Shared%20Documents/FEC%202016/fec2016-preprints/preprint0586.pdf

    3. [3] Hilscher, P.P., Imadera, K., Li, J., & Kishimoto, Y. (2013). The effect of weak collisionality on damped modes and its contribution to linear mode coupling in gyrokinetic simulation. Physics of Plasmas, 20, 082127 - https://doi.org/10.1063/1.4819033

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