[HTML][HTML] Development of the neutral model in the nonlinear MHD code JOREK: Application to E× B drifts in ITER PFPO-1 plasmas

SQ Korving, GTA Huijsmans, JS Park, A Loarte… - Physics of …, 2023 - pubs.aip.org
The prediction of power fluxes and plasma-wall interactions impacted by MHD processes
during ITER operation [disruption, Edge Localized Modes (ELMs), 3D magnetic fields …

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 …

Confinement of passing and trapped runaway electrons in the simulation of an ITER current quench

K Särkimäki, J Artola, M Hoelzl, Jorek Team - Nuclear Fusion, 2022 - iopscience.iop.org
Runaway electrons (REs) present a high-priority R&D issue for ITER but little is known about
the extent to which RE generation is affected by the stochastic field intrinsic to disrupting …

Runaway dynamics in tokamak disruptions with current relaxation

I Pusztai, M Hoppe, O Vallhagen - Journal of Plasma Physics, 2022 - cambridge.org
The safe operation of tokamak reactors requires a reliable modelling capability of
disruptions, and in particular the spatio-temporal dynamics of associated runaway electron …

General dispersion relations for resistive wall modes in tokamaks

VD Pustovitov - Physics of Plasmas, 2023 - pubs.aip.org
The dispersion relation for the resistive wall modes (RWMs) is derived without the use of the
trial function b HF proposed in SW Haney and JP Freidberg [Phys. Fluids B 1, 1637 (1989)] …

The effect of vertical displacements on the runaway electron avalanche in ITER mitigated disruptions

C Wang, E Nardon, FJ Artola, V Bandaru… - Nuclear …, 2024 - iopscience.iop.org
In order to prepare the operation of ITER, it is important to estimate the amplitude of the
runaway electron (RE) current that could appear following disruptions at large plasma …

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 …

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 …

[HTML][HTML] Runaway electron fluid model extension in JOREK and ITER relevant benchmarks

V Bandaru, M Hoelzl, FJ Artola, O Vallhagen… - Physics of …, 2024 - pubs.aip.org
We present details of recent extensions of the runaway electron (RE) fluid model
implemented in the fusion magnetohydrodynamics code JOREK [M. Hoelzl et al., Nucl …

The impact of fusion-born alpha particles on runaway electron dynamics in ITER disruptions

A Lier, G Papp, PW Lauber, I Pusztai… - Nuclear …, 2023 - iopscience.iop.org
In the event of a tokamak disruption in a DT plasma, fusion-born alpha particles take several
milliseconds longer to thermalise than the background. As the damping rates drop …