213 citations · 457 across the 19 of their papers we have counts for
20 papers
3D modelling of thermal loads during unmitigated vertical displacement events in ITER and JET
F. J. Artola, A. Redl, S. N. Gerasimov +9
Predicting three-dimensional thermal loads during tokamak disruptions is essential for ITER yet remains weakly developed. We present a physics-based workflow that couples MHD simul…
Runaway electron generation in ITER mitigated disruptions with improved physics models
L. Votta, F. J. Artola, E. Nardon +2
We assess runaway-electron (RE) generation in ITER disruptions mitigated by shattered pellet injection (SPI) using improved physics modelling in the 1D disruption simulation framew…
Quantitative 3D non-linear simulations of shattered pellet injection in ASDEX Upgrade using JOREK
W. Tang, M. Hoelzl, P. Heinrich +16
Shattered pellet injection (SPI) as primary mitigation method for major disruptions in ITER has a large parameter space available for optimization including the total amount of inj…
Numerical model for pellet rocket acceleration in PELOTON
J. Corbett, R. Samulyak, F. J. Artola +3
A direct numerical simulation model for the rocket acceleration of pellets in thermonuclear fusion devices has been developed for PELOTON, a 3D Lagrangian particle pellet code [R.…
Thermal resilience of the ITER tungsten first wall to runaway electron impact
S. Ratynskaia, K. Paschalidis, T. Rizzi +7
The fast volumetric deposition of multi-MeV high current runaway electron (RE) beams constitutes the most critical issue for the ITER tungsten (W) first wall (FW) longevity. Such r…
Runaway electron-induced plasma facing component damage in tokamaks
S. Ratynskaia, M. Hoelzl, E. Nardon +31
This Roadmap article addresses the critical and multifaceted challenge of plasma-facing component (PFC) damage caused by runaway electrons (REs) in tokamaks, a phenomenon that pose…
Self-consistent full MHD coupling of JOREK and STARWALL for advanced plasma free boundary simulation
Raffaele Sparago, Francisco Javier Artola, Matthias Hoelzl
An adequate modelling of the electromagnetic interaction of the plasma with the surrounding conductors is paramount for the correct reproduction of 3D plasma dynamics. Simulations…
Non-linear MHD modelling of shattered pellet injection in ASDEX Upgrade
W. Tang, M. Hoelzl, M. Lehnen +11
Shattered pellet injection (SPI) is selected for the disruption mitigation system in ITER, due to deeper penetration, expected assimilation efficiency and prompt material delivery.…
Radiated energy fraction of SPI-induced disruptions at ASDEX Upgrade
Paul Heinrich, Gergely Papp, Stefan Jachmich +15
Future large tokamaks will operate at high plasma currents and high stored plasma energies. To ensure machine protection in case of a sudden loss of plasma confinement (major disru…
Runaway electron beam formation, vertical motion, termination and wall loads in EU-DEMO
F. Vannini, V. Bandaru, H. Bergstroem +9
Runaway electron loads onto material structures are a major concern for future large tokamaks due to the efficient avalanching at high plasma currents. Here, we perform predictive…
Axisymmetric predictions for mitigated and vertically unstable disruptions in ITER with runaway electrons
V. Bandaru, M. Hoelzl, F. J. Artola +2
We present two-dimensional global simulations of mitigated and vertically unstable disruptions in ITER in the presence of runaway electrons. An elongated plasma in free-boundary eq…
Plasmoid drift and first wall heat deposition during ITER H-mode dual-SPIs in JOREK simulations
D. Hu, F. J. Artola, E. Nardon +6
The heat flux mitigation during the Thermal Quench (TQ) by the Shattered Pellet Injection (SPI) is one of the major elements of disruption mitigation strategy for ITER. It's effici…
Runaway Electron Dynamics in ITER Disruptions with Shattered Pellet Injections
Oskar Vallhagen, Lise Hanebring, Javier Artola +6
This study systematically explores the parameter space of disruption mitigation through shattered pellet injection in ITER with a focus on runaway electron dynamics, using the disr…
Complete 3D MHD simulations of the current quench phase of ITER mitigated disruptions
F. J. Artola, A. Loarte, M. Hoelzl +3
Complete 3D simulations of the current quench phase of ITER disruptions are key to predict asymmetric forces acting into the ITER wall. We present for the first time such simulatio…
Simulations of COMPASS Vertical Displacement Events with a self-consistent model for halo currents including neutrals and sheath boundary conditions
F. J. Artola, A. Loarte, E. Matveeva +11
The understanding of the halo current properties during disruptions is key to design and operate large scale tokamaks in view of the large thermal and electromagnetic loads that th…
3D simulations of vertical displacement events in tokamaks: A benchmark of M3D-C, NIMROD and JOREK
F. J. Artola, C. R. Sovinec, S. C. Jardin +3
In recent years, the nonlinear 3D magnetohydrodynamic codes JOREK, M3D-C and NIMROD developed the capability of modelling realistic 3D vertical displacement events (VDEs) inclu…
The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas
M Hoelzl, GTA Huijsmans, SJP Pamela +50
JOREK is a massively parallel fully implicit non-linear extended MHD code for realistic tokamak X-point plasmas. It has become a widely used versatile code for studying large-scale…
Understanding the reduction of the edge safety factor during hot VDEs and fast edge cooling events
F. J. Artola, K. Lackner, G. T. A. Huijsmans +3
In the present work a simple analytical approach is presented in order to clarify the physics behind the edge current density behaviour of a hot plasma entering in contact with a r…
Axisymmetric simulations of vertical displacement events in tokamaks: A benchmark of M3D-C, NIMROD and JOREK
I. Krebs, F. J. Artola, C. R. Sovinec +4
A benchmark exercise for the modeling of vertical displacement events (VDEs) is presented and applied to the 3D nonlinear magneto-hydrodynamic codes M3D-C, JOREK and NIMROD. Th…
Simulating the nonlinear interaction of relativistic electrons and tokamak plasma instabilities: Implementation and validation of a fluid model
V. Bandaru, M. Hoelzl, F. J. Artola +2
For the simulation of disruptions in tokamak fusion plasmas, a fluid model describing the evolution of relativistic runaway electrons and their interaction with the background plas…