Results 1 to 10 of about 9,347 (265)

Investigation of Tearing Modes on the Spherical Tokamak Globus-M2 Using the Doppler Backscattering Method

open access: yesApplied Sciences, 2023
In this study, we observed magnetohydrodynamic (MHD) activity of the spherical tokamak Globus-M2 which led to a deterioration in plasma confinement, such as a transition from the H-mode to L-mode, or even disruption.
Alexander Yashin   +9 more
doaj   +3 more sources

Resistive wall tearing mode disruptions

open access: yesNuclear Fusion
This paper deals with resistive wall tearing mode (RWTM) disruptions. RWTMs are closely related to resistive wall modes. RWTMs are tearing modes whose linear and nonlinear behavior is strongly dependent on the resistive wall outside the plasma.
H.R. Strauss, B.E. Chapman, B.C. Lyons
doaj   +3 more sources

Linear stability of tearing modes [PDF]

open access: yesPhysics of Fluids, 1986
This paper examines the stability of tearing modes in a sheared slab when the width of the tearing layer is much smaller than the ion Larmor radius. The ion response is nonlocal, and the quasineutrality retains its full integal form. An expansion procedure is introduced to solve the quasineutrality equation in powers of the width of the tearing layer ...
Taik Soo Hahm, S C Cowley, R M Kulsrud
exaly   +3 more sources

Self-consistent study of tearing mode with finite current gradient in the resistive-inertial and viscous-resistive regimes

open access: yesAIP Advances, 2023
Via the two-field reduced magneto-hydrodynamics model, a self-consistent theory of tearing mode evolution is developed to study the stability of tearing mode in the resistive-inertial and viscous-resistive regimes.
Wenlong Huang, Zihan Wang, Mingwei Yang
doaj   +1 more source

Mullins effect under tearing mode and its reversibility of ethylene-vinyl acetate copolymer/chloroprene rubber thermoplastic vulcanizates

open access: yesHecheng xiangjiao gongye, 2023
Thermoplastic vulcanizate (TPV) based on ethylene-vinyl acetate copolymer (EVA)/chloroprene rubber (CR) blends were prepared by dynamic vulcanization. Its micromorphology, tearing strength, Mullins effect and reversible behavior and its mechanism under ...
LU Xun1, WANG Jun-hao2, ZHU Da-zhi1, WANG Zhao-bo1
doaj   +1 more source

The spherical tearing mode [PDF]

open access: yesGeophysical Research Letters, 2004
The spherical tearing mode is the three‐dimensional analog of the classical tearing mode in two dimensions. In three dimensions, loops of field lines connecting magnetic nulls play the role of separatrices. A numerical study of the tearing instability of a three‐dimensional analytic equilibrium containing a closed spherical tearing surface composed of ...
S. Hu   +3 more
openaire   +1 more source

Suppression and saturation of error field-driven tearing mode for different magnetic shears in rotating plasmas

open access: yesAIP Advances, 2020
Effects of the equilibrium plasma flow on the error field-driven tearing mode are investigated in a two-dimensional resistive magnetohydrodynamics model.
Bang-Feng Zhang, Xian-Qu Wang
doaj   +1 more source

Numerical studies on electron magnetohydrodynamics tearing mode instability

open access: yesAIP Advances, 2021
The 2D electron-magnetohydrodynamics (EMHD) dominant tearing mode in an electron-skin-depth-scale current sheet (ECS) is further studied. The resistive diffusion is proved to be insignificant at the scale.
Wenping Guo, Jiaqi Wang, Dongjian Liu
doaj   +1 more source

A fundamental understanding of the unstable eigenmodes of double tearing instabilities in a shear slab geometry

open access: yesAIP Advances, 2020
Two types of unstable eigenmodes of resistive tearing instabilities, namely, symmetric and anti-symmetric modes, in a double current sheet configuration are analyzed by means of both an eigenvalue solver and initial value simulation.
L. Wei, F. Yu, H. J. Ren, Z. X. Wang
doaj   +1 more source

Tearing mode analysis in electron magnetohydrodynamics with pressure gradient

open access: yesAIP Advances, 2020
A two-dimensional three-component (2D/3C) electron magnetohydrodynamic (EMHD) model is implemented to investigate the linear behavior of collisionless tearing modes in slab geometry.
Wenping Guo   +3 more
doaj   +1 more source

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