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

S. J. Diem; L. R. Baylor; N. M. Ferraro; B. C. Lyons; D. Shiraki; R. W. Wilcox

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

S. J. Diem, L. R. Baylor, N. M. Ferraro, B. C. Lyons, D. Shiraki, R. W. Wilcox

PPPL Theory

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

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 confident 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 effects of the pellet.

Original language	English (US)
State	Published - 2019
Event	46th European Physical Society Conference on Plasma Physics, EPS 2019 - Milan, Italy Duration: Jul 8 2019 → Jul 12 2019

Conference

Conference	46th European Physical Society Conference on Plasma Physics, EPS 2019
Country/Territory	Italy
City	Milan
Period	7/8/19 → 7/12/19

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

Cite this

@conference{ee55e5792ae741a5b49e903b43807fb7,

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 confident 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 effects of the pellet.",

author = "Diem, \{S. J.\} and Baylor, \{L. R.\} and Ferraro, \{N. M.\} and Lyons, \{B. C.\} and D. Shiraki and Wilcox, \{R. W.\}",

year = "2019",

language = "English (US)",

}

TY - CONF

T1 - Utilizing M3D-C1 to understand triggering of ELMs in DIII-D pellet pacing experiments

AU - Diem, S. J.

AU - Baylor, L. R.

AU - Ferraro, N. M.

AU - Lyons, B. C.

AU - Shiraki, D.

AU - Wilcox, R. W.

PY - 2019

Y1 - 2019

N2 - 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 confident 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 effects of the pellet.

AB - 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 confident 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 effects of the pellet.

UR - https://www.scopus.com/pages/publications/85084018678

UR - https://www.scopus.com/inward/citedby.url?scp=85084018678&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85084018678

T2 - 46th European Physical Society Conference on Plasma Physics, EPS 2019

Y2 - 8 July 2019 through 12 July 2019

ER -

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

Abstract

Conference

All Science Journal Classification (ASJC) codes

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