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Direct Evidence of Magnetic Reconnection Onset via the Tearing Instability
Frontiers in Astronomy and Space Sciences, 2022 Magnetic reconnection is a sporadic process responsible for energy release in space and laboratory plasmas. It is believed that the tearing mode instability may be responsible for the onset of reconnection in the magnetotail.
Mayur R. Bakrania +7 more
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Numerical studies on electron magnetohydrodynamics tearing mode instability
AIP 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
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Tubular Pinch and Tearing Instability [PDF]
The Physics of Fluids, 1969 Theoretical considerations and previous experimental findings with fast tubular (cylindrical sheet) pinch discharges are reviewed briefly. More recent work with magnetic probes, as well as streak and Kerr cell photography, corroborates that the sheet-current configuration can be sufficiently stable to survive a fair number of pinch oscillations.
Anderson, Oscar A., Kunkel, Wulf B.
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Nuclear Fusion, 2023 Analysis of a multi-scenario database of over 13 000 DIII-D H-mode discharges shows that the $m,n = 2,1$ magnetic islands are dominantly pressure gradient driven, stochastically triggered non-linear instabilities at all edge safety factor ( $q_\text{95}$
L. Bardóczi, N.J. Richner, N.C. Logan
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Tearing Instability and Current-Sheet Disruption in the Turbulent Dynamo
Physical Review X, 2022 Turbulence in a conducting plasma can amplify seed magnetic fields in what is known as the turbulent, or small-scale, dynamo. The associated growth rate and emergent magnetic-field geometry depend sensitively on the material properties of the plasma, in ...
Alisa K. Galishnikova +2 more
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Applied 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
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Resistive instabilities in toroidal anisotropic plasmas
AIP Advances, 2023 Resistive singular layer equations are developed by applying the magnetohydrodynamic (MHD) model to toroidal anisotropic plasmas. This work extends the previous ideal MHD theory [Shi et al. Phys. Plasmas 23, 082121 (2016)] to the resistive case.
Tonghui Shi, B. Shen, B. Wan
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AIP 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
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Gyrokinetic simulations of the tearing instability [PDF]
Physics of Plasmas, 2011 Linear gyrokinetic simulations covering the collisional–collisionless transitional regime of the tearing instability are performed. It is shown that the growth rate scaling with collisionality agrees well with that predicted by a two-fluid theory for a low plasma beta case in which ion kinetic dynamics are negligible.
Numata, R. +5 more
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AIP Advances, 2022 The effects of compressibility and guiding field on the Kelvin–Helmholtz (KH) instability in a double resonant surface system are numerically investigated by using a compressible magnetohydrodynamics model.
Z. Li +7 more
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