Modelling of vertical displacement events in tokamaks: status and challenges ahead
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 …
Events (VDEs) and present a summary of present modelling efforts and code capabilities …
MHD modeling of shattered pellet injection in JET
Nonlinear 3D MHD simulations of shattered-pellet injection (SPI) in JET show prototypical
SPI-driven disruptions using the M3D-C1 and NIMROD extended-MHD codes. Initially …
SPI-driven disruptions using the M3D-C1 and NIMROD extended-MHD codes. Initially …
Collisional-radiative simulation of impurity assimilation, radiative collapse and MHD dynamics after ITER shattered pellet injection
Recent studies suggest significant time delay between the Shattered Pellet Injection (SPI)
fragment arrival and the temperature radiative collapse could exist in ITER, depending on …
fragment arrival and the temperature radiative collapse could exist in ITER, depending on …
The effect of vertical displacements on the runaway electron avalanche in ITER mitigated disruptions
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 …
runaway electron (RE) current that could appear following disruptions at large plasma …
Nonlinear MHD modeling of neon doped shattered pellet injection with JOREK and its comparison to experiments in KSTAR
SJ Lee, D Hu, M Lehnen, E Nardon, J Kim… - Nuclear …, 2024 - iopscience.iop.org
Abstract 3D nonlinear MHD simulations of neon-doped single shattered pellet injection (SPI)
conducted with the JOREK code reveal rich physics during SPI-induced disruptions in …
conducted with the JOREK code reveal rich physics during SPI-induced disruptions in …
Runaway electron dynamics in ITER disruptions with shattered pellet injections
O Vallhagen, L Hanebring, FJ Artola, M Lehnen… - Nuclear …, 2024 - iopscience.iop.org
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 …
shattered pellet injection in ITER with a focus on runaway electron dynamics, using the …
Density and temperature profiles after low-Z and high-Z shattered pellet injections on DIII-D
A Lvovskiy, A Matsuyama, T O'Gorman, D Shiraki… - Nuclear …, 2023 - iopscience.iop.org
In this work we utilize the recently upgraded Thomson scattering diagnostic to resolve
density and temperature plasma profiles after pure deuterium and mixed neon/deuterium …
density and temperature plasma profiles after pure deuterium and mixed neon/deuterium …
Peridynamic modelling of cryogenic deuterium pellet fragmentation for shattered pellet injection in tokamaks
Shattered pellet injection (SPI) is a promising method for controlling plasma disruptions in
tokamaks. In this study, we present numerical modelling of the fragmentation of cryogenic …
tokamaks. In this study, we present numerical modelling of the fragmentation of cryogenic …
DIII-D research to provide solutions for ITER and fusion energy
CT Holcomb, J Abbate, A Abe, A Abrams… - Nuclear …, 2024 - iopscience.iop.org
The DIII-D tokamak research program utilizes a favourable combination of fusion-relevant
size, flexible and varied actuators, and outstanding diagnostics to provide scientific solutions …
size, flexible and varied actuators, and outstanding diagnostics to provide scientific solutions …
Characterization of early current quench time during massive impurity injection in JT-60SA
T Yokoyama, A Matsuyama, Y Yamamoto… - Nuclear …, 2023 - iopscience.iop.org
Characteristics of the early current quench (CQ) time in mitigated disruptions are studied for
a full-current (5.5 MA) scenario in the JT-60SA superconducting tokamak. Self-consistent …
a full-current (5.5 MA) scenario in the JT-60SA superconducting tokamak. Self-consistent …