The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas
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 …
(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
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 …
Non-axisymmetric MHD simulations of the current quench phase of ITER mitigated disruptions
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 …
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
An analysis workflow has been developed to assess energy deposition and material
damage for ITER vertical displacement events (VDEs) and major disruptions (MD). This …
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
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 …
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 …
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
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 …
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
In recent years, the nonlinear 3D magnetohydrodynamic codes JOREK, M3D-C 1, and
NIMROD developed the capability of modeling realistic 3D vertical displacement events …
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 …
coils must drain sizeably the current from the vessel and, therefore, reduce disruption forces …
Current density limitation during disruptions due to plasma-sheaths
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 …
first time, that the current density that flows from the plasma into the vacuum vessel during …