Non-linear extended MHD simulations of type-I edge localised mode cycles in ASDEX Upgrade and their underlying triggering mechanism

A Cathey, M Hoelzl, K Lackner, GTA Huijsmans… - Nuclear …, 2020 - iopscience.iop.org
A triggering mechanism responsible for the explosive onset of edge localised modes (ELMs)
in fusion plasmas is identified by performing, for the first time, non-linear …

Solitary magnetic perturbations at the ELM onset

RP Wenninger, H Zohm, JE Boom, A Burckhart… - Nuclear …, 2012 - iopscience.iop.org
Tokamak H-mode plasmas frequently exhibit edge-localized modes (ELMs). ELMs allow
maintaining sufficient plasma purity and thus enable stationary H-mode. On the other hand …

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

M Hoelzl, S Guenter, RP Wenninger, WC Müller… - Physics of …, 2012 - pubs.aip.org
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 …

Nonlinear coupling induced toroidal structure of edge localized modes

AF Mink, M Hoelzl, E Wolfrum, F Orain, M Dunne… - Nuclear …, 2017 - iopscience.iop.org
Edge localized modes (ELMs) are magnetohydrodynamic (MHD) instabilities that cause fast
periodic relaxations of the strong edge pressure gradient in tokamak fusion plasmas. A …

Insights into type‐I edge localized modes and edge localized mode control from JOREK non‐linear magneto‐hydrodynamic simulations

M Hoelzl, GTA Huijsmans, F Orain… - … to Plasma Physics, 2018 - Wiley Online Library
Edge localized modes (ELMs) are repetitive instabilities driven by the large pressure
gradients and current densities in the edge of H‐mode plasmas. Type‐I ELMs lead to a fast …

Non-linear magnetohydrodynamic simulations of edge localised mode triggering via vertical position oscillations in ITER

FJ Artola, GTA Huijsmans, M Hoelzl, P Beyer… - Nuclear …, 2018 - iopscience.iop.org
Magnetic triggering of edge localized modes (ELMs) in Ohmic H-mode plasmas was first
reported in the TCV tokamak (Degeling et al 2003 Plasma Phys. Control. Fusion 45 1637) …

Non-linear MHD modeling of edge localized mode cycles and mitigation by resonant magnetic perturbations

F Orain, M Becoulet, J Morales… - Plasma Physics and …, 2014 - iopscience.iop.org
The dynamics of a multi-edge localized mode (ELM) cycle as well as the ELM mitigation by
resonant magnetic perturbations (RMPs) are modeled in realistic tokamak X-point geometry …

Comparing spontaneous and pellet-triggered ELMs via non-linear extended MHD simulations

A Cathey, M Hoelzl, S Futatani, PT Lang… - Plasma Physics and …, 2021 - iopscience.iop.org
Injecting frozen deuterium pellets into an ELMy H-mode plasma is a well established
scheme for triggering edge localized modes (ELMs) before they naturally occur. This paper …

Computing nonlinear magnetohydrodynamic edge localized instabilities in fusion plasmas

DP Brennan, SE Kruger, DD Schnack… - Journal of Physics …, 2006 - iopscience.iop.org
The onset and nonlinear evolution of Edge Localized Modes (ELMs) in toroidally confined
plasmas are known to shed thermal energy from the edge of the confinement region, and …

Frequency control of type-I ELMs by magnetic triggering in ASDEX Upgrade

PT Lang, AW Degeling, JB Lister… - Plasma physics and …, 2004 - iopscience.iop.org
Magnetic triggering of edge localized modes (ELMs) was reported first from TCV in ohmic
plasmas showing type-III ELMs. This method, showing successful locking of the ELM …