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 …
Access and sustainment of naturally ELM-free and small-ELM regimes
E Viezzer - Nuclear Fusion, 2018 - iopscience.iop.org
Edge localized modes (ELMs) have a detrimental effect on the plasma facing components
and pose one of the most serious obstacles for steady-state operation in a future fusion …
and pose one of the most serious obstacles for steady-state operation in a future fusion …
Gyrokinetic analysis of inter-edge localized mode transport mechanisms in a DIII-D pedestal
In this study, gyrokinetic simulations are used to study pedestal fluctuations for DIII-D
discharge 174082 using the GENE code. Nonlinear local simulations indicate that electron …
discharge 174082 using the GENE code. Nonlinear local simulations indicate that electron …
ECEI characterization of pedestal fluctuations in quiescent H-mode plasmas in DIII-D
Electron cyclotron emission imaging (ECEI) is employed to characterize the magneto
hydraulics dynamics (MHD) fluctuations at the quiescent H-mode pedestals in DIII-D …
hydraulics dynamics (MHD) fluctuations at the quiescent H-mode pedestals in DIII-D …
Excitation Mechanism of Low- Edge Harmonic Oscillations in Edge Localized Mode-Free, High Performance, Tokamak Plasmas
The excitation mechanism for low-n edge harmonic oscillations in quiescent H-mode
regimes is identified analytically. We show that the combined effect of diamagnetic and …
regimes is identified analytically. We show that the combined effect of diamagnetic and …
Non-linear MHD investigations of high-confinement regimes without type-I ELMs in ASDEX Upgrade and JT-60SA
Large edge localised modes (ELMs) would cause an unacceptable reduction of material
lifetime in future large tokamaks due to the significant amount of energy expelled from the …
lifetime in future large tokamaks due to the significant amount of energy expelled from the …
Towards validated MHD modeling of edge harmonic oscillation in DIII-D QH-mode discharges
The extended-MHD NIMROD code (Sovinec CR and King JR 2010 J. Comput. Phys. 229
5803) is used to simulate the dynamics of an edge harmonic oscillation (EHO) in quiescent …
5803) is used to simulate the dynamics of an edge harmonic oscillation (EHO) in quiescent …
Impact of rotation and ion diamagnetic drift on MHD stability at edge pedestal in quiescent H-mode plasmas
N Aiba, X Chen, TH Osborne, M Honda… - Nuclear …, 2020 - iopscience.iop.org
MHD stability at edge pedestal in a QH-mode plasma in DIII-D was analyzed by taking into
account plasma rotation and ion diamagnetic drift effects. We have found that the coupled …
account plasma rotation and ion diamagnetic drift effects. We have found that the coupled …
[HTML][HTML] Sparsified time-dependent Fourier neural operators for fusion simulations
This paper presents a sparsified Fourier neural operator for coupled time-dependent partial
differential equations (ST-FNO) as an efficient machine learning surrogate for fluid and …
differential equations (ST-FNO) as an efficient machine learning surrogate for fluid and …
Comparison of MHD stability properties between QH-mode and ELMy H-mode plasmas by considering plasma rotation and ion diamagnetic drift effects
N Aiba, X Chen, TH Osborne, KH Burrell - Nuclear Fusion, 2023 - iopscience.iop.org
Magnetohydrodynamic (MHD) stability at tokamak edge pedestal in a quiescent H-mode
(QH-mode) and type-I ELMy H-mode plasmas in DIII-D experiment was analyzed by …
(QH-mode) and type-I ELMy H-mode plasmas in DIII-D experiment was analyzed by …