Results 151 to 160 of about 1,612,071 (199)

Magnetic reconnection via current sheets

The Physics of Fluids, 1986
A general picture of magnetic reconnection in the framework of 2-D incompressible resistive magnetohydrodynamic theory is presented. Numerical studies of (quasi-) steady-state driven reconnection reveal current sheet formation for Mach numbers M=u/vA exceeding the Sweet–Parker reconnection rate MSP=(η/LvA)1/2. Since the thickness δ of the current sheet
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Bounded Current Sheets

The Physics of Fluids, 1964
An adiabatic two-fluid model is used to discuss generalized solutions for the structure of a plane bounded current sheet in a plasma. The current sheet is advancing in a region with no magnetic field. Numerical results for time-independent solutions are given for different values of the ratio of the velocity of the sheet to the Alfvén velocity referred
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Current instability in reconnecting current sheets

Journal of Geophysical Research, 1977
The problem of current instability leading to anomalous resistivity in current sheets in which reconnection is occurring is considered. The cause of reconnection is not considered. It is simply assumed that because of external forces, oppositely directed magnetic fields are pressed together on a time scale much longer than the time scale for the ...
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Runaway electrons in plasma current sheets

Physical Review Letters, 1994
It is shown that a runaway electron population accelerates along the main magnetic field in a Sweet-Parker current sheet. After a characteristic distance the entire current is carried by runaways. The thickness of this runaway sheet is much smaller than the original Ohmic sheet. The influence of microinstabilities is discussed.
, Gurevich, , Sudan
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Investigation of current-sheet microstructure.

AIAA Journal, 1965
The magnetic field and the driven gas in a plasma accelerator are separated by a thin, dense current layer, provided that the time scale of the operating impulse is sufficiently short. Theoretical models of current-sheet structure usually involve the assumption that the propellant is a fully ionized plasma; whereas in most real devices, there is no ...
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Current-sheets

1998
Abstract A current-sheet is an infinitely thin stratum of conducting matter, bounded on both sides by insulating media, so that electric currents may flow in the sheet, but cannot escape from it except at certain points called electrodes, where currents are made to enter or to leave the sheet.
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An Analysis Of Eddy Current Testing With Sheet Current

[1993] Digests of International Magnetics Conference, 1993
The eddy current problem of recognizing a crack on the edge of a rivet hole is analyzed numerically by using the current vector potential method. The vertical field is induced by the disturbance of the sheet eddy current on a thin plate. The vertical field is evaluated for a visualization technique with magnetooptics.
M. Tsuchimoto, A. Fukaya, T. Honma
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Current sheet measurements within a flapping plasma sheet

Journal of Geophysical Research: Space Physics, 1998
Slow plasma flows perpendicular to the magnetotail neutral sheet and associated with flapping motions of the plasma sheet can occasionally exceed the sensitivity threshold of plasma instruments. This is the case in several events selected from 3 months of magnetotail observations by the three‐dimensional plasma instrument on the AMPTE/IRM satellite. By
V. Sergeev, V. Angelopoulos, C. Carlson, P. Sutcliffe   +3 more
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Structure of plasma sheet current in distant magnetotail: Doubly humped electric current sheet

Advances in Space Research, 1996
Abstract The structure of plasma sheet in the distant magnetotail observed by the GEOTAIL satellite is examined. We discuss that the structure of the plasma sheet can be expressed as a doubly humped current sheet, which is quite different from the standard Harris-type current sheet.
M Hoshino, T Yamamoto, T Mukai, A Nishida, S Kokubun   +4 more
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Analysis of the heliospheric current sheet fine structure: Single or multiple current sheets

Journal of Atmospheric and Solar-Terrestrial Physics, 2006
Abstract When studying the heliospheric current sheet (HCS) local structure, it is not unusual to find wide HCS crossings. In this paper, we present one crossing that appears to have a complex internal structure composed of three parallel sheets and several possible HCS crossings that are consecutive and are on the order of minutes.
J.J. Blanco, J. Rodríguez-Pacheco, M.A. Hidalgo, J. Sequeiros   +3 more
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