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Title: Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments

Abstract

M3D-C1, a code for solving the linear and non-linear extended-MHD equations in toroidal geometry, is used to model pellet ELM triggering in DIII-D ITER-like plasmas. Understanding of the physical mechanisms of ELM triggering and improved modeling are required for condent extrapolation to ITER and beyond. M3D-C1 results run in linear 2D mode show that the localized perturbation is due to the pellet destabilizing peeling-ballooning modes. Calculations of linear peeling-ballooning stability as a function of pellet size suggest that a 2D pellet density ring underestimates the eects of the pellet.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [3]; ORCiD logo [1]; ORCiD logo [1]
  1. ORNL
  2. Princeton Plasma Physics Laboratory (PPPL)
  3. General Atomics, San Diego
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1545564
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 46th European Physical Society Conference on Plasma Physics (EPS 2019) - Milan, , Italy - 7/8/2019 4:00:00 AM-7/12/2019 4:00:00 AM
Country of Publication:
United States
Language:
English

Citation Formats

Diem, Stephanie, Baylor, Larry, Ferraro, Nathaniel M., Lyons, Brendan, Shiraki, Daisuke, and Wilcox, Robert. Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments. United States: N. p., 2019. Web.
Diem, Stephanie, Baylor, Larry, Ferraro, Nathaniel M., Lyons, Brendan, Shiraki, Daisuke, & Wilcox, Robert. Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments. United States.
Diem, Stephanie, Baylor, Larry, Ferraro, Nathaniel M., Lyons, Brendan, Shiraki, Daisuke, and Wilcox, Robert. Mon . "Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments". United States. https://www.osti.gov/servlets/purl/1545564.
@article{osti_1545564,
title = {Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments},
author = {Diem, Stephanie and Baylor, Larry and Ferraro, Nathaniel M. and Lyons, Brendan and Shiraki, Daisuke and Wilcox, Robert},
abstractNote = {M3D-C1, a code for solving the linear and non-linear extended-MHD equations in toroidal geometry, is used to model pellet ELM triggering in DIII-D ITER-like plasmas. Understanding of the physical mechanisms of ELM triggering and improved modeling are required for condent extrapolation to ITER and beyond. M3D-C1 results run in linear 2D mode show that the localized perturbation is due to the pellet destabilizing peeling-ballooning modes. Calculations of linear peeling-ballooning stability as a function of pellet size suggest that a 2D pellet density ring underestimates the eects of the pellet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {7}
}

Conference:
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