Theory and simulation of lower-hybrid drift instability for current sheet with guide field

2008 ◽  
Vol 15 (11) ◽  
pp. 112103 ◽  
Author(s):  
P. H. Yoon ◽  
Y. Lin ◽  
X. Y. Wang ◽  
A. T. Y. Lui
Keyword(s):  
Current Sheet ◽  
Lower Hybrid ◽  
Guide Field ◽  
Drift Instability

Obliquely propagating generalized lower-hybrid drift instability with nonlocal two-fluid theory in current sheet equilibrium

2010 ◽  
Vol 17 (10) ◽  
pp. 102102 ◽  
Author(s):  
Dandan Zou ◽  
Weihong Yang ◽  
Yinhua Chen ◽  
P. H. Yoon
Keyword(s):  
Current Sheet ◽  
Lower Hybrid ◽  
Fluid Theory ◽  
Drift Instability ◽  
Two Fluid

Lower-hybrid drift instability in a thin current sheet with κ velocity distribution

2009 ◽  
Vol 16 (4) ◽  
pp. 042107 ◽  
Author(s):  
Feng Huang ◽  
Yinhua Chen ◽  
Guifen Shi ◽  
Zuquan Hu ◽  
Haiou Peng ◽  
...  
Keyword(s):  
Velocity Distribution ◽  
Current Sheet ◽  
Lower Hybrid ◽  
Thin Current Sheet ◽  
Drift Instability

Gyrokinetic theory of electrostatic lower-hybrid drift instabilities in a current sheet with guide field

2014 ◽  
Vol 21 (5) ◽  
pp. 052104 ◽  
Author(s):  
K. Tummel ◽  
L. Chen ◽  
Z. Wang ◽  
X. Y. Wang ◽  
Y. Lin
Keyword(s):  
Current Sheet ◽  
Lower Hybrid ◽  
Guide Field ◽  
A Current

Lower hybrid drift instability in a current sheet with anisotropic temperature

2013 ◽  
Vol 87 (6) ◽  
pp. 065501 ◽  
Author(s):  
Feng Huang ◽  
Guohong Liu ◽  
Yinhua Chen ◽  
M Y Yu ◽  
Fei Yan ◽  
...  
Keyword(s):  
Current Sheet ◽  
Lower Hybrid ◽  
Anisotropic Temperature ◽  
Drift Instability ◽  
A Current

Lower hybrid waves at the magnetosheath separatrix region

2020 ◽  
Author(s):  
Binbin Tang ◽  
Wenya Li ◽  
Daniel Graham ◽  
Chi Wang ◽  
Yuri Khotyaintsev ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Particle Diffusion ◽  
Limited Region ◽  
Guide Field ◽  
Out Of Plane ◽  
Hybrid Waves ◽  
Drift Instability ◽  
The Waves ◽  
Lower Hybrid Waves ◽  
Drift Direction

<div>Lower hybrid waves are investigated at the magnetosheath separatrix region in asymmetric guide-field reconnection at Earth’s magnetopause by using MMS observations. These waves are found in a limited region, depending on the density gradient across the separatrix, and they are driven by the lower hybrid drift instability. Properties of these waves are presented: (1) the waves propagate towards the x-line due to the out-of-plane magnetic field, consistent with the electron drift direction; (2) the wave potential is about 20% of the electron temperature. These drift waves effectively produce cross-field particle diffusion, enabling the entry of magnetosheath electrons into the exhaust region.</div>

scholarly journals Fluid simulations of three-dimensional reconnection that capture the lower-hybrid drift instability

2021 ◽  
Vol 87 (1) ◽  
Author(s):  
F. Allmann-Rahn ◽  
S. Lautenbach ◽  
R. Grauer ◽  
R. D. Sydora
Keyword(s):  
Current Sheet ◽  
Large Scale ◽  
Fluid Model ◽  
Initial Perturbation ◽  
Three Dimensional ◽  
Continuum Models ◽  
Lower Hybrid ◽  
Pressure Gradients ◽  
Kinetic Effects ◽  
Drift Instability

Fluid models that approximate kinetic effects have received attention recently in the modelling of large-scale plasmas such as planetary magnetospheres. In three-dimensional reconnection, both reconnection itself and current sheet instabilities need to be represented appropriately. We show that a heat flux closure based on pressure gradients enables a 10-moment fluid model to capture key properties of the lower-hybrid drift instability (LHDI) within a reconnection simulation. Characteristics of the instability are examined with kinetic and fluid continuum models, and its role in the three-dimensional reconnection simulation is analysed. The saturation level of the electromagnetic LHDI is higher than expected, which leads to strong kinking of the current sheet. Therefore, the magnitude of the initial perturbation has significant impact on the resulting turbulence.

Lower-Hybrid Drift Instability in Modified Harris Current Sheet

2008 ◽  
Vol 10 (4) ◽  
pp. 416-421
Author(s):  
Hu Youjun ◽  
Yang Weihong ◽  
Chen Yinhua ◽  
Huang Feng ◽  
Wang Feihu ◽  
...  
Keyword(s):  
Current Sheet ◽  
Lower Hybrid ◽  
Drift Instability

Strong B-Field Fluctuations Caused by the Electromagnetic LHDI and their Impact on 3D Reconnection

2021 ◽  
Author(s):  
Florian Allmann-Rahn ◽  
Simon Lautenbach ◽  
Richard Sydora ◽  
Rainer Grauer
Keyword(s):  
Magnetic Field ◽  
Current Sheet ◽  
Moderate Level ◽  
Lower Hybrid ◽  
Particle In Cell ◽  
Strong Current ◽  
Field Fluctuations ◽  
Drift Instability ◽  
The Impact ◽  
The Magnetic Field

<p>The electromagnetic branch of the lower-hybrid drift instability (LHDI) can lead to kinking of current sheets and fluctuations in the magnetic field and is present for example in Earth’s magnetosphere. Previous particle-in-cell studies suggested that the electromagnetic LHDI’s saturation is at a moderate level and that strong current sheet kinking is only caused by slower kink-type modes. Here, we present kinetic continuum simulations that show strong kinking and high saturation levels of the B-field fluctuations. Has the impact of the electromagnetic LHDI been underestimated? The capability of the LHDI to produce x-lines and turbulence in 3D reconnection is discussed at the example of ten-moment multi-fluid simulations.</p>

scholarly journals Nonlinear Evolution of Lower-Hybrid Drift Instability in Harris Current Sheet

2008 ◽  
Vol 25 (7) ◽  
pp. 2725-2728 ◽  
Author(s):  
Guo Fan ◽  
Lu Quan-Ming ◽  
Guo Jun ◽  
Wang Shui
Keyword(s):  
Current Sheet ◽  
Nonlinear Evolution ◽  
Lower Hybrid ◽  
Drift Instability
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