Influence of Hall effect and toroidal flow on the plasmoid formation and incomplete reconnection in a low resistivity plasma in tokamak

W Zhang, ZW Ma, HW Zhang - Nuclear Fusion, 2021 - iopscience.iop.org
The nonlinear resistive-kink mode in the low resistivity plasma in tokamak is investigated
through the three-dimensional, toroidal, and nonlinear Hall-MHD code CLT. It is found that …

Role of Hall effect on the resistive kink mode in tokamaks

W Zhang, ZW Ma, HW Zhang… - Plasma Physics and …, 2020 - iopscience.iop.org
The influence of the Hall effect on the nonlinear evolution of the m/n= 1/1 resistive-kink mode
is numerically investigated by the three-dimensional toroidal Hall-MHD code CLT. It is found …

Effect of central plasma pressure on high-order harmonics of 1/1 quasi-interchange instability in a central weak magnetic shear tokamak configuration

Y Xie, J Ma, W Guo - Plasma Physics and Controlled Fusion, 2024 - iopscience.iop.org
Numerical investigations of linear and nonlinear stages of quasi-interchange instability in a
cylindrical tokamak geometry with a flat q-profile in the core region are conducted using …

Three types of pressure crash in the low magnetic shear tokamaks

W Zhang, ZW Ma, X Wang, WJ Chen - Physics of Plasmas, 2022 - pubs.aip.org
Numerical investigations on the pressure crash with a low magnetic shear profile in
Tokamaks are carried out through the three-dimensional, toroidal, and nonlinear MHD code …

Numerical study on toroidal mode coupling and triggering of neoclassical tearing modes by sawteeth

Q Yu, S Günter, K Lackner, E Strumberger… - Nuclear …, 2019 - iopscience.iop.org
Numerical simulations have been carried out to understand the seeding of neoclassical
tearing modes (NTMs), using a single fluid model and the four-field equations. The paper …

Current and pressure gradient triggering and nonlinear saturation of low-n edge harmonic oscillations in tokamaks

A Kleiner, JP Graves, D Brunetti… - Plasma Physics and …, 2019 - iopscience.iop.org
Non-axisymmetric free-boundary equilibrium computations are shown to represent
nonlinearly saturated external kink modes and external kink-like sidebands coupled to …

Kinetic-magnetohydrodynamic hybrid simulation of infernal modes in circular tokamak plasmas with effects of kinetic thermal ions

M Sato, Y Todo, N Aiba, M Takechi - Nuclear Fusion, 2024 - iopscience.iop.org
Abstract Effects of the kinetic thermal ions (KTIs) on ideal infernal modes and resistive
infernal modes have been investigated by using magnetohydrodynamic (MHD) simulation …

Non-Resonant n= 1 Helical Core Induced by m/n= 2/1 Neoclassical Tearing Mode in JT-60U

T Bando, S Inoue, K Shinohara, A Isayama… - Plasma and Fusion …, 2021 - jstage.jst.go.jp
Helical cores (HCs) in tokamaks have been an important research topic for the fusion reactor
because HCs can affect transports of impurities [1–4], energetic particles [5], or toroidal …

Fundamental properties of ideal and resistive infernal modes in tokamaks

M Coste-Sarguet, JP Graves - Plasma Physics and Controlled …, 2024 - iopscience.iop.org
Infernal modes are unstable in regions of weak magnetic shear and significant pressure
gradients. These modes comprise a broad class of instabilities, encompassing interchange …

Pressure driven long wavelength MHD instabilities in an axisymmetric toroidal resistive plasma

JP Graves, M Coste-Sarguet… - Plasma Physics and …, 2021 - iopscience.iop.org
A general set of equations that govern global resistive interchange, resistive internal kink
and resistive infernal modes in a toroidal axisymmetric equilibrium are systematically …