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… - Nuclear …, 2021 - iopscience.iop.org
JOREK is a massively parallel fully implicit non-linear extended magneto-hydrodynamic
(MHD) code for realistic tokamak X-point plasmas. It has become a widely used versatile …

Modelling of vertical displacement events in tokamaks: status and challenges ahead

FJ Artola, N Schwarz, S Gerasimov… - Plasma Physics and …, 2024 - iopscience.iop.org
In this paper, we revisit the physics of mitigated and unmitigated Vertical Displacement
Events (VDEs) and present a summary of present modelling efforts and code capabilities …

Non-axisymmetric MHD simulations of the current quench phase of ITER mitigated disruptions

FJ Artola, A Loarte, M Hoelzl, M Lehnen… - Nuclear …, 2022 - iopscience.iop.org
Non-axisymmetric 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 …

Energy deposition and melt deformation on the ITER first wall due to disruptions and vertical displacement events

J Coburn, M Lehnen, RA Pitts, G Simic, FJ Artola… - Nuclear …, 2021 - iopscience.iop.org
An analysis workflow has been developed to assess energy deposition and material
damage for ITER vertical displacement events (VDEs) and major disruptions (MD). This …

Experiments and non-linear MHD simulations of hot vertical displacement events in ASDEX-Upgrade

N Schwarz, FJ Artola, M Hoelzl, M Bernert… - Plasma Physics and …, 2023 - iopscience.iop.org
Hot vertical displacement events (VDEs) are one of the worst case scenarios for high-current
tokamaks as they are associated with large heat loads and electro-magnetic forces. Non …

Overview of the COMPASS results

M Hron, J Adamek, J Cavalier, R Dejarnac… - Nuclear …, 2022 - iopscience.iop.org
COMPASS addressed several physical processes that may explain the behaviour of
important phenomena. This paper presents results related to the main fields of COMPASS …

The mechanism of the global vertical force reduction in disruptions mitigated by massive material injection

N Schwarz, FJ Artola, F Vannini, M Hoelzl… - Nuclear …, 2023 - iopscience.iop.org
Disruptions lead to a rapid loss of thermal and magnetic energy and can cause large heat
loads, mechanical forces, and the excitation of a beam of relativistic runaway electrons. The …

3D simulations of vertical displacement events in tokamaks: A benchmark of M3D-C1, NIMROD, and JOREK

FJ Artola, CR Sovinec, SC Jardin, M Hoelzl… - Physics of …, 2021 - pubs.aip.org
In recent years, the nonlinear 3D magnetohydrodynamic codes JOREK, M3D-C 1, and
NIMROD developed the capability of modeling realistic 3D vertical displacement events …

Global forces on the COMPASS-U wall during plasma disruptions

VV Yanovskiy, N Isernia, VD Pustovitov… - Nuclear …, 2021 - iopscience.iop.org
First, it is shown that during electromagnetic transients in COMPASS-U the poloidal field
coils must drain sizeably the current from the vessel and, therefore, reduce disruption forces …

Current density limitation during disruptions due to plasma-sheaths

J Adamek, FJ Artola, A Loarte, E Matveeva… - Nuclear …, 2022 - iopscience.iop.org
The presented experimental study realized in the COMPASS tokamak demonstrates, for the
first time, that the current density that flows from the plasma into the vacuum vessel during …