English
5D full-$f$ gyrokinetic simulation for ion turbulence and transport barrier in tokamak plasmas
Multi angle
Auteurs : Imadera, Kenji (Auteur de la conférence)
CIRM (Editeur )
65Mxx - Numerical methods for IVP of PDE
76F10 - Turbulence of shear flows
76X05 - Ionized gas flow in electromagnetic fields; plasmic flow
82D10 - Plasmas
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].
Mots-Clés : particle simulation; plasma; turbulence
Codes MSC : Mots-Clés : particle simulation; plasma; turbulence
65Mxx - Numerical methods for IVP of PDE
76F10 - Turbulence of shear flows
76X05 - Ionized gas flow in electromagnetic fields; plasmic flow
82D10 - Plasmas
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Informations sur la Vidéo
Réalisateur : Hennenfent, GuillaumeLangue : Anglais Date de Publication : 02/11/2017 Date de Captation : 02/11/2017 Sous Collection : Research talks Catégorie arXiv : Plasma Physics Domaine(s) : EDP ; Physique Mathématique Format : MP4 (.mp4) - HD Durée : 00:34:30 Audience : Chercheurs Download : https://videos.cirm-math.fr/2017-11-02_Imadera.mp4 
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Informations sur la Rencontre
Nom de la Rencontre : Collisionless Boltzmann (Vlasov) equation and modeling of self-gravitating systems and plasmas / Boltzmann sans collisions, Vlasov et modélisation des systèmes auto-gravitants et des plasmasOrganisateurs de la Rencontre : Colombi, Stéphane ; Devriendt, Julien ; Elskens, Yves ; Taruya, Atsushi ; Triay, Roland Dates : 30/10/2017 - 03/11/2017 Année de la rencontre : 2017 URL de la Rencontre : http://conferences.cirm-math.fr/1683.html
Données de citation
DOI : 10.24350/CIRM.V.19239003Citer cette vidéo: 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
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Bibliographie
- [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] 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] 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
