Comparison of Edge and Internal Transport Barriers in Drift Wave Predictive Simulations

J. Weiland, K. Crombe, P. Mantica, Volker Naulin, T. Tala, Jan Weiland, Enzo Lazzaro

    Research output: Contribution to journalConference articleResearchpeer-review

    Abstract

    We have simulated the formation of an internal transport barrier on JET including a self-consistent treatment of ion and electron temperatures and poloidal and toroidal momentum. Similar simulations of edge transport barriers, including the L-H transition have also been made. However, here only polodal momentum and the temperatures were simulated. The internal barrier included an anomalous spinup of poloidal momentum similar to that in the experiment. Also the edge barrier was accompanied by a spinup of poloidal momentum. The experimental density (with no barrier) was used and kept fixed for the internal barrier. For the edge barrier the edge density was varied and it turned out that a lower edge density gave a stronger barrier. Electromagnetic and nonlocal effects were important for both types of barriers. [ABSTRACT FROM AUTHOR]
    Original languageEnglish
    JournalAIP Conference Proceedings - American Institute of Physics
    Volume1392
    Issue number1
    Pages (from-to)85-91
    ISSN0094-243X
    DOIs
    Publication statusPublished - 2011
    EventChalmers Workshop on Nonlinear Phenomena in Fusion Plasmas - Varenna (IT), 8-10 Jun
    Duration: 1 Jan 2011 → …

    Conference

    ConferenceChalmers Workshop on Nonlinear Phenomena in Fusion Plasmas
    CityVarenna (IT), 8-10 Jun
    Period01/01/2011 → …

    Keywords

    • Fusion energy

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