Results 181 to 190 of about 40,435 (218)

Cusp Geometry in MHD Simulations

Surveys in Geophysics, 2005
The MHD simulations described here show that the latitude of the high-altitude cusp decreases as the IMF swings from North to South, that there is a pronounced dawn-dusk asymmetry at high-altitude associated with a dawn-dusk component of the IMF, and that at the same time there is also a pronounced dawn-dusk asymmetry at low-altitude.
George Siscoe, Nancy Crooker, Keith Siebert, Nelson Maynard, Daniel Weimer, Willard White   +5 more
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MHD simulation of moving arcs

2007 16th IEEE International Pulsed Power Conference, 2007
Arcs moving due to Lorentz forces in gases in the range from normal to high pressure are used in several technical applications. A time-dependent 3D simulation solving the MHD (Magneto-hydrodynamic) equation system is applied here to study the behavior of a moving high-pressure arc in more detail. As examples, arcs in dry air and in SF6 gas rotating in
S. Kosse, M. Wendt, D. Uhrlandt, K.-D. Weltmann, Ch. Franck   +4 more
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Simulation of MHD Processes

1986
The kinetic equations described in the previous chapter are rather difficult to analyze. This is principally due to the large number of independent variables that determine the distribution function f (t, r, v). Moreover, the description of many processes by means of distribution functions is too comprehensive and contains too much information.
Yuri N. Dnestrovskii, Dimitri P. Kostomarov   +1 more
openaire   +1 more source

MHD simulations of magnetotail dynamics

Journal of Geophysical Research: Space Physics, 1996
Resistive MHD simulations of large‐scale magnetotail dynamics demonstrate that the same unstable mode causes plasmoid formation and ejection into the far tail and dipolarization and the formation of the substorm current wedge in the inner tail, consistent with the neutral line model of substorms.
Joachim Birn, Michael Hesse, Karl Schindler   +2 more
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MHD simulations and astrophysical applications

Advances in Space Research, 2005
Abstract Magnetohydrodynamics is an adequate theoretical framework to study a large variety of astrophysical flows. The generation of magnetic fields by dynamo mechanisms, the development of turbulent flows or the topological change of magnetic fields by reconnection, are just a few examples. First, we describe the basic features of the MHD framework.
Daniel O. Gómez, Pablo D. Mininni, Pablo Dmitruk   +2 more
openaire   +1 more source

Numerical simulations of MHD turbulence

Computer Physics Communications, 1988
Abstract Several results using numerical experimentation on homogeneous three-dimensional turbulent MHD flows are reviewed. The role (or absence thereof) of chaos and that of kinetic helicity for the kinematic dynamo problem is described. A second topic concerns the formation of large scale coherent structures due to the inverse cascade of magnetic ...
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Mhd Simulations of Jets From Accretion Disks

Astrophysics and Space Science, 2003
We present the MHD simulation including accretion flows in disks, acceleration of outflows from disks, and collimation of the outflows self-consistently. Although it was considered that this kind of simulations only shows the transient phenomena of jets, we found that the outflow and accretion flow reached a quasi-steady state by performing a long-term
Takahiro Kudoh, Ryoji Matsumoto, Kazunari Shibata   +2 more
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SLAU2-MHD for Low Mach Magnetohydrodynamics (MHD) Simulations

AIAA AVIATION 2021 FORUM, 2021
Tomohiro Mamashita, Keiichi Kitamura, Takashi Minoshima   +2 more
openaire   +1 more source

MHD simulations of the magnetosheath

Advances in Space Research, 1994
Ideal magnetohydrodynamic (MHD) simulations of the dayside magnetosheath are reported. The calculations show a depletion layer near the magnetopause and a new stagnation flow structure. The stagnation flow appears to be a generalization of the stagnation line for ideal MHD.
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MHD Simulations of Crab’s Jet and Torus

Astrophysics and Space Science, 2004
The Crab nebula is regarded as one of the most important “cosmic laboratories” in astrophysics, which has made a bigger impact on the development of astronomy than any other single object beyond the solar system. The most intriguing recent result is the completely unexpected discovery of a peculiar “jet-torus” structure in the inner part of the nebula.
Serguei Komissarov, Yuri Lyubarsky
openaire   +1 more source