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

Hakim, A. H.; Hammett, G. W.

doi:10.1063/1.4907160

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

Journal Article · Sun Feb 15 00:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4907160· OSTI ID:22408099

Hakim, A. H.; Hammett, G. W. ^[1]

Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

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.

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OSTI ID:: 22408099

Journal Information:: Physics of Plasmas, Vol. 22, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X

Country of Publication:: United States

Language:: English

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