Reduced-magnetohydrodynamic simulations of toroidally and poloidally localized edge localized modes

M. Hölzl; S. Günter; R.P. Wenninger; W.-C. Müller; G.T.A. Huysmans; K. Lackner; I. Krebs

doi:10.1063/1.4742994

Reduced-magnetohydrodynamic simulations of toroidally and poloidally localized edge localized modes

M. Hölzl, S. Günter, R.P. Wenninger, W.-C. Müller, G.T.A. Huysmans, K. Lackner, I. Krebs

Research output: Contribution to journal › Article › Academic › peer-review

28 Citations (Scopus)

Abstract

We use the non-linear reduced-magnetohydrodynamic code JOREK to study edge localized modes (ELMs) in the geometry of the ASDEX Upgrade tokamak. Toroidal mode numbers, poloidal filament sizes, and radial propagation speeds of filaments into the scrape-off layer are in good agreement with observations for type-I ELMs in ASDEX Upgrade. The observed instabilities exhibit a toroidal and poloidal localization of perturbations which is compatible with the "solitary magnetic perturbations" recently discovered in ASDEX Upgrade [R. Wenninger et al., "Solitary magnetic perturbations at the ELM onset," Nucl. Fusion (accepted)]. This localization can only be described in numerical simulations with high toroidal resolution.

Original language	English
Pages (from-to)	82505
Journal	Physics of Plasmas
Volume	19
Issue number	8
DOIs	https://doi.org/10.1063/1.4742994
Publication status	Published - 1 Aug 2012
Externally published	Yes

Keywords

filamentation instability
plasma boundary layers
plasma magnetohydrodynamics
plasma nonlinear processes
plasma simulation
plasma toroidal confinement
Magnetohydrodynamics
Nonlinear phenomena: waves wave propagation and other interactions
Macroinstabilities
Plasma-material interactions
boundary layer effects
Tokamaks spherical tokamaks
Perturbative methods

Access to Document

10.1063/1.4742994

http://adsabs.harvard.edu/abs/2012PhPl...19h2505H

Cite this

@article{40bd74d119d842d4a3618a53ee3c72ef,

title = "Reduced-magnetohydrodynamic simulations of toroidally and poloidally localized edge localized modes",

abstract = "We use the non-linear reduced-magnetohydrodynamic code JOREK to study edge localized modes (ELMs) in the geometry of the ASDEX Upgrade tokamak. Toroidal mode numbers, poloidal filament sizes, and radial propagation speeds of filaments into the scrape-off layer are in good agreement with observations for type-I ELMs in ASDEX Upgrade. The observed instabilities exhibit a toroidal and poloidal localization of perturbations which is compatible with the {"}solitary magnetic perturbations{"} recently discovered in ASDEX Upgrade [R. Wenninger et al., {"}Solitary magnetic perturbations at the ELM onset,{"} Nucl. Fusion (accepted)]. This localization can only be described in numerical simulations with high toroidal resolution.",

keywords = "filamentation instability, plasma boundary layers, plasma magnetohydrodynamics, plasma nonlinear processes, plasma simulation, plasma toroidal confinement, Magnetohydrodynamics, Nonlinear phenomena: waves wave propagation and other interactions, Macroinstabilities, Plasma-material interactions, boundary layer effects, Tokamaks spherical tokamaks, Perturbative methods",

author = "M. H{\"o}lzl and S. G{\"u}nter and R.P. Wenninger and W.-C. M{\"u}ller and G.T.A. Huysmans and K. Lackner and I. Krebs",

year = "2012",

month = aug,

day = "1",

doi = "10.1063/1.4742994",

language = "English",

volume = "19",

pages = "82505",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "8",

}

TY - JOUR

T1 - Reduced-magnetohydrodynamic simulations of toroidally and poloidally localized edge localized modes

AU - Hölzl, M.

AU - Günter, S.

AU - Wenninger, R.P.

AU - Müller, W.-C.

AU - Huysmans, G.T.A.

AU - Lackner, K.

AU - Krebs, I.

PY - 2012/8/1

Y1 - 2012/8/1

N2 - We use the non-linear reduced-magnetohydrodynamic code JOREK to study edge localized modes (ELMs) in the geometry of the ASDEX Upgrade tokamak. Toroidal mode numbers, poloidal filament sizes, and radial propagation speeds of filaments into the scrape-off layer are in good agreement with observations for type-I ELMs in ASDEX Upgrade. The observed instabilities exhibit a toroidal and poloidal localization of perturbations which is compatible with the "solitary magnetic perturbations" recently discovered in ASDEX Upgrade [R. Wenninger et al., "Solitary magnetic perturbations at the ELM onset," Nucl. Fusion (accepted)]. This localization can only be described in numerical simulations with high toroidal resolution.

AB - We use the non-linear reduced-magnetohydrodynamic code JOREK to study edge localized modes (ELMs) in the geometry of the ASDEX Upgrade tokamak. Toroidal mode numbers, poloidal filament sizes, and radial propagation speeds of filaments into the scrape-off layer are in good agreement with observations for type-I ELMs in ASDEX Upgrade. The observed instabilities exhibit a toroidal and poloidal localization of perturbations which is compatible with the "solitary magnetic perturbations" recently discovered in ASDEX Upgrade [R. Wenninger et al., "Solitary magnetic perturbations at the ELM onset," Nucl. Fusion (accepted)]. This localization can only be described in numerical simulations with high toroidal resolution.

KW - filamentation instability

KW - plasma boundary layers

KW - plasma magnetohydrodynamics

KW - plasma nonlinear processes

KW - plasma simulation

KW - plasma toroidal confinement

KW - Magnetohydrodynamics

KW - Nonlinear phenomena: waves wave propagation and other interactions

KW - Macroinstabilities

KW - Plasma-material interactions

KW - boundary layer effects

KW - Tokamaks spherical tokamaks

KW - Perturbative methods

U2 - 10.1063/1.4742994

DO - 10.1063/1.4742994

M3 - Article

SN - 1070-664X

VL - 19

SP - 82505

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 8

ER -

Reduced-magnetohydrodynamic simulations of toroidally and poloidally localized edge localized modes

Abstract

Keywords

Access to Document

Fingerprint

Cite this