Results 41 to 50 of about 1,092,232 (226)

Observation of plasma dynamics in a theta pinch by a novel method

open access: yesMatter and Radiation at Extremes, 2023
A novel experimental method is proposed for observing plasma dynamics subjected to magnetic fields based on a newly developed cylindrical theta-pinch device.
Zhao Wang   +11 more
doaj   +1 more source

Radiative Magnetohydrodynamic Simulation of the Confined Eruption of a Magnetic Flux Rope: Unveiling the Driving and Constraining Forces

open access: yesThe Astrophysical Journal, 2023
Abstract We analyze the forces that control the dynamic evolution of a flux rope eruption in a three-dimensional radiative magnetohydrodynamic simulation. The confined eruption of the flux rope gives rise to a C8.5 flare. The flux rope rises slowly with an almost constant velocity of a few kilometers per second in the early stage when ...
Can Wang   +3 more
openaire   +3 more sources

Model for current drive induced crash cycles in W7-X

open access: yesNuclear Fusion, 2021
In the Wendelstein 7-X (W7-X) stellarator, the vacuum rotational transform, ι, has a flat radial profile and does not cross any major rational resonance.
K. Aleynikova   +14 more
semanticscholar   +1 more source

Adaptive mesh refinement with spectral accuracy for magnetohydrodynamics in two space dimensions [PDF]

open access: yes, 2007
We examine the effect of accuracy of high-order spectral element methods, with or without adaptive mesh refinement (AMR), in the context of a classical configuration of magnetic reconnection in two space dimensions, the so-called Orszag-Tang vortex made ...
A Pouquet   +13 more
core   +2 more sources

Dynamic performance of the plasma‐triggered‐based protective gas switch used in the hybrid UHVDC system

open access: yesIET Generation, Transmission & Distribution, 2023
Following the design demands of the protective switch used in ±800 kV hybrid UHVDC system, a plasma‐triggered‐based protective gas switch (PTGS) is developed by performing the comparative study of its dynamic performance by considering the arc dynamic ...
Wen Wang   +5 more
doaj   +1 more source

Magnetohydrodynamic turbulence in warped accretion discs [PDF]

open access: yes, 2001
Warped, precessing accretion discs appear in a range of astrophysical systems, for instance the X-ray binary Her X-1 and in the active nucleus of NGC4258.
Brandenburg, A.   +5 more
core   +3 more sources

Kink instabilities in relativistic jets can drive quasi-periodic radiation signatures [PDF]

open access: yes, 2020
Relativistic jets are highly collimated plasma outflows emerging from accreting black holes. They are launched with a significant amount of magnetic energy, which can be dissipated to accelerate nonthermal particles and give rise to electromagnetic ...
L. Dong, Haocheng Zhang, D. Giannios
semanticscholar   +1 more source

A Magnetohydrodynamic Boost for Relativistic Jets [PDF]

open access: yes, 2007
We performed relativistic magnetohydrodynamic simulations of the hydrodynamic boosting mechanism for relativistic jets explored by Aloy & Rezzolla (2006) using the RAISHIN code.
Hardee, Philip   +4 more
core   +3 more sources

Global Alfven Wave Heating of the Magnetosphere of Young Stars [PDF]

open access: yes, 2002
Excitation of a Global Alfven wave (GAW) is proposed as a viable mechanism to explain plasma heating in the magnetosphere of young stars. The wave and basic plasma parameters are compatible with the requirement that the dissipation length of GAWs be ...
A. G. Elfimov   +9 more
core   +3 more sources

Unveiling the Mechanism for the Rapid Acceleration Phase in a Solar Eruption

open access: yesThe Astrophysical Journal Letters, 2023
Two major mechanisms have been proposed to drive the solar eruptions: the ideal magnetohydrodynamic instability and the resistive magnetic reconnection. Due to the close coupling and synchronicity of the two mechanisms, it is difficult to identify their ...
Ze Zhong   +4 more
doaj   +1 more source

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