scholarly journals Slow shock and rotational discontinuity in MHD and Hall MHD models with anisotropic pressure

2016 ◽  
Vol 121 (7) ◽  
pp. 6245-6261 ◽  
Author(s):  
L.-N. Hau ◽  
B.-J. Wang
Keyword(s):  
Anisotropic Pressure ◽  
Slow Shock ◽  
Rotational Discontinuity ◽  
Hall Mhd

scholarly journals Switch-off slow shock/rotational discontinuity structures in collisionless magnetic reconnection: What to look for in satellite observations

2017 ◽  
Vol 44 (8) ◽  
pp. 3447-3455 ◽  
Author(s):  
M. E. Innocenti ◽  
E. Cazzola ◽  
R. Mistry ◽  
J. P. Eastwood ◽  
M. V. Goldman ◽  
...  
Keyword(s):  
Magnetic Reconnection ◽  
Satellite Observations ◽  
Slow Shock ◽  
Rotational Discontinuity

Double discontinuity: A compound structure of slow shock and rotational discontinuity

1998 ◽  
Vol 103 (A4) ◽  
pp. 6513-6520 ◽  
Author(s):  
Y. C. Whang ◽  
J. Zhou ◽  
R. P. Lepping ◽  
A. Szabo ◽  
D. Fairfield ◽  
...  
Keyword(s):  
Compound Structure ◽  
Slow Shock ◽  
Rotational Discontinuity

scholarly journals Formation of a compound slow shock-rotational discontinuity structure

2000 ◽  
Vol 105 (A6) ◽  
pp. 13045-13053 ◽  
Author(s):  
L. C. Lee ◽  
B. H. Wu ◽  
J. K. Chao ◽  
C. H. Lin ◽  
Y. Li
Keyword(s):  
Slow Shock ◽  
Rotational Discontinuity ◽  
Discontinuity Structure

scholarly journals Theory and observation of double discontinuities

2004 ◽  
Vol 11 (2) ◽  
pp. 259-266 ◽  
Author(s):  
Y. C. Whang
Keyword(s):  
Magnetic Field ◽  
Interplanetary Space ◽  
Compound Structure ◽  
Magnetic Field Data ◽  
Rotational Discontinuity ◽  
Current Term ◽  
Steady State Solutions ◽  
Hall Mhd ◽  
The Magnetic Field ◽  
Surprising Discovery

Abstract. Recent research using high-resolution magnetic field data to examine the interior structures of MHD shocks in interplanetary space and in the magnetotail led to a surprising discovery that a slow-mode shock is often followed by an adjoining rotational discontinuity layer on the postshock side. The thickness of each layer is of the order of a few ion inertial lengths. Such a compound structure is known as a double discontinuity. When the magnetic field rotates by several degrees per ion inertial length inside a thin layer, the Hall current term becomes important in the generalized Ohm's law. Steady state solutions based on the Hall-MHD theory have been obtained to show the merging of a rotational layer and a slow shock layer to form a compound structure like the observed double discontinuities.

scholarly journals Global well-posedness of the full compressible Hall-MHD equations

2021 ◽  
Vol 10 (1) ◽  
pp. 1235-1254
Author(s):  
Qiang Tao ◽  
Canze Zhu
Keyword(s):  
Global Solution ◽  
Large Time ◽  
Initial Temperature ◽  
Large Time Behavior ◽  
Initial Energy ◽  
Mhd Equations ◽  
Well Posedness ◽  
Time Behavior ◽  
Magnetohydrodynamic Flows ◽  
Hall Mhd

Abstract This paper deals with a Cauchy problem of the full compressible Hall-magnetohydrodynamic flows. We establish the existence and uniqueness of global solution, provided that the initial energy is suitably small but the initial temperature allows large oscillations. In addition, the large time behavior of the global solution is obtained.

Toroidal plasma configuration with anisotropic pressure

1987 ◽  
Vol 38 (2) ◽  
pp. 209-222 ◽  
Author(s):  
Hussain M. Rizk
Keyword(s):  
General Expression ◽  
Magnetic Surface ◽  
Anisotropic Pressure ◽  
Mean Velocity ◽  
Magnetohydrodynamic Equation ◽  
Toroidal Plasma ◽  
Hydrodynamic Calculations ◽  
The Mean ◽  
The One ◽  
Plasma Configuration

The relation between various surface quantities required in hydrodynamic calculations, and the relation between the parallel and perpendicular currents in an arbitrary magnetic toroidal plasma configuration with scalar pressure, are generalized to the case of anisotropic pressure. Magnetic co-ordinates for hydrodynamic equilibria in this configuration are defined. A general expression for the mean velocity of diffusion through a magnetic surface, on the basis of the one-fluid magnetohydrodynamic equation with anisotropic pressure, is derived.

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