A Coarse-grained Kinetic Equation for Neutral Particles in Turbulent Fusion Plasmas

Abstract : A coarse-grained kinetic equation for neutral particles (atoms, molecules) in magnetized fusion plasmas, valid on time scales large compared to the turbulence correlation time, is presented. This equation includes the effects of plasma density fluctuations, described by Gamma statistics, on the transport of neutral particles. These effects have so far been neglected in plasma edge modeling, in spite of the fact that the amplitude of fluctuations can be of order unity. Density fluctuations are shown to have a marked effect on the screening of neutrals and on the spatial localization of the ionization source, in particular at high density. The coarse-grained equations obtained in this work are readily implemented in edge code suites currently used for fusion plasma analysis and future divertor design (ITER, DEMO).
Type de document :
Article dans une revue
Physics of Plasmas, American Institute of Physics, 2012, 19, pp.060701. 〈10.1063/1.4725504〉
Liste complète des métadonnées

Littérature citée [8 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/hal-01023292
Contributeur : Yannick Marandet <>
Soumis le : vendredi 11 juillet 2014 - 18:25:10
Dernière modification le : jeudi 18 janvier 2018 - 01:50:28
Document(s) archivé(s) le : samedi 11 octobre 2014 - 13:11:23

Fichier

Mekkaoui_letter_revised_nored....
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

A. Mekkaoui, Yannick Marandet, D. Reiter, P. Boerner, Fabrice Catoire, et al.. A Coarse-grained Kinetic Equation for Neutral Particles in Turbulent Fusion Plasmas. Physics of Plasmas, American Institute of Physics, 2012, 19, pp.060701. 〈10.1063/1.4725504〉. 〈hal-01023292〉

Partager

Métriques

Consultations de la notice

310

Téléchargements de fichiers

107