April 4-6

Abstract Details

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Author: Fatima Ebrahimi
Requested Type: Poster
Submitted: 2022-03-09 19:16:40


Contact Info:
Princeton Plasma Physics Laboratory/Princeton Univ
C Site T 152 MS-28, PPPL
Princeton, NJ   08543

Abstract Text:
New results on the rise and nonlinear relaxation of Peeling-Ballooning ELMs (Edge-Localized Modes) will be presented. The formation of current sheets and the transition to 3-D current-sheet instability is demonstrated through fully nonlinear resistive MHD simulations of P-B ELMs in DIII-D discharges. Large-scale axisymmetric current sheets, as well as small-scale poloidally extending current sheets, are formed as the coherent P-B ELM filaments nonlinearly evolve. A model for the magnetic self-organization during nonlinear ELMs is presented.