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H 1 High magnetic field averaged models for plasma physics

Auteurs : Bostan, Mihaï (Auteur de la Conférence)
CIRM (Editeur )

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    Résumé : The subject matter of this talk concerns the derivation of the Finite Larmor radius approximation, when collisions are taken into account.
    Several studies are performed, corresponding to different collision kernels. The main motivation consists in computing the gyro-average of the Fokker-Planck- Landau operator, which plays a major role in plasma physics. We determine its equilibria and derive the fluid approximation around them, leading to a new Euler type system of conservation laws.
    The main technique applies for studying highly anisotropic parabolic problems, for example the heat equation with disparate diffusion coeffcients with respect to the parallel and perpendicular directions.

    Codes MSC :
    76X05 - Ionized gas flow in electromagnetic fields; plasmic flow
    82D10 - Plasmas

      Informations sur la Vidéo

      Réalisateur : Hennenfent, Guillaume
      Langue : Anglais
      Date de publication : 25/08/14
      Date de captation : 29/07/14
      Collection : Research talks
      Format : quicktime ; audio/x-aac
      Durée : 00:48:06
      Domaine : Mathematical Physics
      Audience : Chercheurs ; Doctorants , Post - Doctorants
      Download : https://videos.cirm-math.fr/2014-07-29_Bostan.mp4

    Informations sur la rencontre

    Nom du congrès : CEMRACS : Numerical modeling of plasmas / CEMRACS : Modèles numériques des plasmas
    Organisteurs Congrès : Campos Pinto, Martin ; Charles, Frédérique ; Guillard, Hervé ; Nkonga, Boniface
    Dates : 21/07/14 - 29/08/14
    Année de la rencontre : 2014
    URL Congrès : http://smai.emath.fr/cemracs/cemracs14/

    Citation Data

    DOI : 10.24350/CIRM.V.18589503
    Cite this video as: Bostan, Mihaï (2014). High magnetic field averaged models for plasma physics. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.18589503
    URI : http://dx.doi.org/10.24350/CIRM.V.18589503