43 citations · 104 across the 7 of their papers we have counts for
8 papers
Implementation and verification of the avalanche source in a 3D full-f particle-in-cell model of relativistic electrons for studies of tokamak disruptions
Fiona Wouters, Hannes Bergström, Matthias Hoelzl +3
Tokamak disruptions may lead to the acceleration of some electrons to relativistic energies. These so-called runaway electrons (REs) can multiply exponentially via knock-on collisi…
Comparison of MHD and gyrokinetic simulations of linear instabilities at the q = 1 surface
F. N. Antlitz, X. Wang, M. Hoelzl +10
Accurate modeling of core instabilities in tokamak plasmas is essential to understand the underlying physical mechanisms and their impact on plasma confinement. The ideal stability…
MHD simulations of formation, sustainment and loss of Quiescent H-mode in the all-tungsten ASDEX Upgrade
Lorenz Meier, Matthias Hoelzl, Andres Cathey +10
Periodic edge localized modes (ELMs) are the non-linear consequences of pressure-gradient-driven ballooning modes and current-driven peeling modes becoming unstable in the pedestal…
MHD simulations of small ELMs at low triangularity in ASDEX Upgrade
A. Cathey, M. Hoelzl, G. Harrer +9
The development of small- and no-ELM regimes for ITER is a high priority topic due to the risks associated to type-I ELMs. By considering non-linear extended MHD simulations of the…
New plasma regimes with small ELMs and high confinement at the Joint European Torus
J. Garcia, E. de la Luna, M. Sertoli +15
New plasma regimes with high confinement, low core impurity accumulation and small Edge localized mode (ELMs) perturbations have been obtained close to ITER conditions in magnetica…
Numerical study of tearing mode seeding in tokamak X-point plasma
Dmytro Meshcheriakov, Matthias Hoelzl, Valentin Igochine +11
A detailed understanding of island seeding is crucial to avoid (N)TMs and their negative consequences like confinement degradation and disruptions. In the present work, we investig…
Performance analysis and optimization of the JOREK code for many-core CPUs
T. B. Fehér, M. Hölzl, G. Latu +1
This report investigates the performance of the JOREK code on the Intel Knights Landing and Skylake processor architectures. The OpenMP scaling of the matrix construction part of t…
Modelling of spatial structure of divertor footprints caused by edge-localized modes mitigated by magnetic perturbations
Pavel Cahyna, Marina Becoulet, Guido T. A. Huijsmans +7
Resonant magnetic perturbations (RMPs) can mitigate the edge-localized modes (ELMs), i.e. cause a change of the ELM character towards smaller energy loss and higher frequency. Duri…