Results 11 to 20 of about 8,033 (175)

Tokamak Edge Plasma Turbulence Interaction with Magnetic X-Point in 3D Global Simulations

open access: yesFluids, 2019
Turbulence in the edge plasma of a tokamak is a key actor in the determination of the confinement properties. The divertor configuration seems to be beneficial for confinement, suggesting an effect on turbulence of the particular magnetic geometry ...
Davide Galassi   +6 more
doaj   +1 more source

Divertor Heat Load in ASDEX Upgrade L-Mode in Presence of External Magnetic Perturbation [PDF]

open access: yes, 2017
Power exhaust is one of the major challenges for a future fusion device. Applying a non-axisymmetric external magnetic perturbation is one technique that is studied in order to mitigate or suppress large edge localized modes which accompany the high ...
Eich, Thomas   +5 more
core   +3 more sources

Thin current sheets caused by plasma flow gradients in space and astrophysical plasma [PDF]

open access: yes, 2010
Strong gradients in plasma flows play a major role in space and astrophysical plasmas. A typical situation is that a static plasma equilibrium is surrounded by a plasma flow, which can lead to strong plasma flow gradients at the separatrices between ...
Nickeler, Dieter H., Wiegelmann, Thomas
core   +2 more sources

Trajectory analysis for non-Brownian inertial suspensions in simple shear flow [PDF]

open access: yes, 2006
We analyse pair trajectories of equal-sized spherical particles in simple shear flow for small but finite Stokes numbers. The Stokes number, $\mbox{\textit{St}} \,{=}\, \dot{\gamma} \tau_p$, is a dimensionless measure of particle inertia; here, $\tau_p ...
Brady, John F., Subramanian, G.
core   +1 more source

Observations of separatrix motion during the formation of a field-reversed configuration [PDF]

open access: yes, 1981
An axial array of B/sub z/ probes is used to monitor the formation and initial motion of the x-point of the separatrix in a field-reversed configuration. The x-point is observed to form near the outside edge of the main coil at approximately 3.0 ..mu..s after main field initiation and then move rapidly toward the center of the coil.
Cochrane, J.C.   +3 more
openaire   +2 more sources

On the force-free magnetosphere of aligned rotator [PDF]

open access: yes, 2005
We investigate in details properties of stationary force-free magnetosphere of aligned rotator assuming the last closed field line lying in equatorial plane at large distances from pulsar.
Timokhin, A. N.
core   +3 more sources

Modeling of plasma beta effects on the island divertor transport in the standard configuration of W7-X

open access: yesNuclear Fusion, 2023
The influence of plasma beta effects on the edge plasma transport in the Wendelstein 7-X standard configuration is studied systematically by using EMC3-EIRENE combined with a 3D equilibrium code named HINT. The magnetic topology changes induced by plasma
S. Xu   +32 more
doaj   +1 more source

Resonance breaking due to dissipation in planar planetary systems [PDF]

open access: yes, 2014
We study the evolution of two planets around a star, in mean-motion resonance and undergoing tidal effect. We derive an integrable analytical model of mean-motion resonances of any order which reproduce the main features of the resonant dynamics.
Correia, A. C. M.   +2 more
core   +1 more source

On the nature of reconnection at a solar coronal null point above a separatrix dome [PDF]

open access: yes, 2013
Three-dimensional magnetic null points are ubiquitous in the solar corona, and in any generic mixed-polarity magnetic field. We consider magnetic reconnection at an isolated coronal null point, whose fan field lines form a dome structure.
Galsgaard, K.   +2 more
core   +3 more sources

Separatrix radius measurement of field-reversed configuration plasma in FRX-L

open access: yesReview of Scientific Instruments, 2004
Magnetic pickup coils and single turn flux loops are installed on the FRX-L device. The combination of the two measurements provides the excluded flux radius that approximates the separatrix radius of the field-reversed configuration (FRC) plasma. Arrays of similar probes are used to map out local magnetic field dynamics beyond both ends of the theta ...
S. Y. Zhang   +6 more
openaire   +2 more sources

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