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Title: A gyrokinetic one-dimensional scrape-off layer model of an edge-localized mode heat pulse

An electrostatic gyrokinetic-based model is applied to simulate parallel plasma transport in the scrape-off layer to a divertor plate. The authors focus on a test problem that has been studied previously, using parameters chosen to model a heat pulse driven by an edge-localized mode in JET. Previous work has used direct particle-in-cell equations with full dynamics, or Vlasov or fluid equations with only parallel dynamics. With the use of the gyrokinetic quasineutrality equation and logical sheath boundary conditions, spatial and temporal resolution requirements are no longer set by the electron Debye length and plasma frequency, respectively. This test problem also helps illustrate some of the physics contained in the Hamiltonian form of the gyrokinetic equations and some of the numerical challenges in developing an edge gyrokinetic code.
Authors:
 [1] ; ;  [2] ;  [3]
  1. Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08543 (United States)
  2. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)
  3. (United States)
Publication Date:
OSTI Identifier:
22408099
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BOLTZMANN-VLASOV EQUATION; BOUNDARY CONDITIONS; DEBYE LENGTH; DIVERTORS; EDGE LOCALIZED MODES; ELECTRONS; FLOW MODELS; HAMILTONIANS; HEAT; JET TOKAMAK; LANGMUIR FREQUENCY; ONE-DIMENSIONAL CALCULATIONS; PLASMA; PLASMA SCRAPE-OFF LAYER; TIME RESOLUTION