Results 1 to 10 of about 584 (191)

Closure of the single fluid magnetohydrodynamic equations in presence of electron cyclotron current drive [PDF]

open access: yesEPJ Web of Conferences, 2015
In the presence of electron cyclotron current drive (ECCD), the Ohm’s law of single fluid magnetohydrodynamics (MHD) is modified as E + v × B = η(J – JECCD).
Egbert Westerhof, Jane Pratt
exaly   +3 more sources

The Phase Modulating Micro-Mover Based on the MHD/MET System in the Reference Arm of the Scanning Interferometer [PDF]

open access: yesMicromachines, 2022
The possibility of using a magnetohydrodynamic drive (MHD) and amolecular-electronic transfer (MET) sensor as a single device for moving and precise control of the displacement of a movable mirror, which is part of a scanning interferometer, is ...
Sergey Kalenkov   +4 more
doaj   +2 more sources

Magnetohydrodynamic simulations of direct current helicity injection for current drive in tokamaks [PDF]

open access: yesPhysics of Plasmas, 1996
Magnetohydrodynamic (MHD) computations of direct current (DC) helicity injection for tokamak-like configurations show current drive with no ‘‘loop voltage’’ in a resistive, pressureless plasma. Self-consistently induced, hollow current profiles are unstable to resistive modes that partially relax the profile through the MHD dynamo mechanism.
Carl Sovinec, Sovinec C R, Prager S C
exaly   +2 more sources

Direct evidence for magnetohydrodynamic disk winds driving rotating outflows in protostar HOPS 358. [PDF]

open access: yesNat Commun
Angular momentum removal is a fundamental requirement for star and planet formation, yet the mechanisms driving this process remain debated. Magnetohydrodynamic disk winds, launched along magnetic field lines from extended disk regions, offer a promising solution, particularly in regions where magnetorotational turbulence is weak.
Kim CH   +6 more
europepmc   +3 more sources

On the stabilization of neoclassical magnetohydrodynamic tearing modes using localized current drive or heating [PDF]

open access: yesPhysics of Plasmas, 1997
The effectiveness of using localized current drive or heating to suppress the formation and growth of neoclassical magnetohydrodynamic (MHD) tearing modes is addressed. The most efficient way to use an auxiliary current source is to cause current to flow in the same direction as the equilibrium bootstrap current and phase the current relative to the ...
Chris Hegna, Hegna C C
exaly   +2 more sources

Nonlinear magnetohydrodynamic modeling of current-drive-induced sawtooth-like crashes in the W7-X stellarator

open access: yesPhysics of Plasmas, 2023
Sawtooth-like core electron temperature crashes have been observed in W7-X experiments with electron cyclotron current drive. We present nonlinear single-fluid magnetohydrodynamic simulations of this phenomenon using the newly developed stellarator modeling capability of the M3D-C1 code. The near-axis current drive gives rise to two ι = 1 resonances in
Yao Zhou   +2 more
exaly   +4 more sources

Effect of nanoparticle shape on unsteady liquid film flow of MHD Oldroyd-B ferrofluid

open access: yesAin Shams Engineering Journal, 2021
A computational framework is carried out to investigate the drive, and thermal transport of the thin-film flow of unstable magnetohydrodynamic (MHD) Oldroyd-B ferrofluid suspend with cobalt ferrite (CoFe2O4) nanoparticles in water.
Iskander Tlili   +3 more
doaj   +1 more source

Chromospheric Jets and Their Properties [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2022
In this study we review solar chromospheric jets and characteristics of them. The chromosphere and transition region are the interface between the solar photosphere and the corona, which plays a key role in the formation and acceleration of the solar ...
Ehsan Tavabi, Sima Zeighami
doaj   +1 more source

Plasma Flows in Solar Filaments as Electromagnetically Driven Vortical Flows

open access: yesPhysics, 2021
Electromagnetic expulsion acts on a body suspended in a conducting fluid or plasma, which is subject to the influence of electric and magnetic fields. Physically, the effect is a magnetohydrodynamic analogue of the buoyancy (Archimedean) force, which is ...
Yuri E. Litvinenko
doaj   +1 more source

Anomalous Scaling in the Kinematic Magnetohydrodynamic Turbulence [PDF]

open access: yesEPJ Web of Conferences, 2020
The problem of the anomalous scaling in the kinematic magnetohydrodynamic turbulence is investigated using the field theoretic renormalization group method and the operator product expansion technique.
Jurčišinová Eva   +2 more
doaj   +1 more source

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