scholarly journals Two-fluid and finite Larmor radius effects on helicity evolution in a plasma pinch

2016 ◽  
Vol 23 (3) ◽  
pp. 032303 ◽  
Author(s):  
J. P. Sauppe ◽  
C. R. Sovinec
Keyword(s):  
Larmor Radius ◽  
Finite Larmor Radius ◽  
Plasma Pinch ◽  
Two Fluid

scholarly journals Effects of finite Larmor radius on equilibria with flow in reduced two-fluid models

2008 ◽  
Author(s):  
Atsushi Ito ◽  
Noriyoshi Nakajima ◽  
Olivier Sauter ◽  
Xavier Garbet ◽  
Elio Sindoni
Keyword(s):  
Larmor Radius ◽  
Fluid Models ◽  
Finite Larmor Radius ◽  
Two Fluid

Effects of collisions and gyroviscosity on gravitational instability in a two-component plasma

1972 ◽  
Vol 8 (3) ◽  
pp. 393-400 ◽  
Author(s):  
F. Herrnegger
Keyword(s):  
Gravitational Instability ◽  
Larmor Radius ◽  
Finite Larmor Radius ◽  
Two Component ◽  
Component Plasma ◽  
Jeans Criterion ◽  
Fluid Theory ◽  
The Magnetic Field ◽  
Two Fluid ◽  
Critical Wavenumber

The dispersion relation for gravitational instability has been given within the framework of a two-fluid theory. It has been shown that the Jeans criterion is changed by finite Larmor radius and by collisions for waves propagating perpendicular to the magnetic field. The critical wavenumber for instability decreases with increasing Alfvén velocity and with increasing gyroviscosity. Instability does not set in with overstabiity.

First-order finite-Larmor-radius fluid modeling of tearing and relaxation in a plasma pinch

2012 ◽  
Vol 19 (5) ◽  
pp. 055905 ◽  
Author(s):  
J. R. King ◽  
C. R. Sovinec ◽  
V. V. Mirnov
Keyword(s):  
Larmor Radius ◽  
Fluid Modeling ◽  
Finite Larmor Radius ◽  
Plasma Pinch ◽  
First Order

Finite-Larmor-radius-induced global geodesic acoustic modes—a two-fluid model

2021 ◽  
Vol 61 (10) ◽  
pp. 106024
Author(s):  
Yu Wang ◽  
Tianchun Zhou ◽  
Xiaogang Wang
Keyword(s):  
Fluid Model ◽  
Larmor Radius ◽  
Finite Larmor Radius ◽  
Acoustic Modes ◽  
Two Fluid Model ◽  
Two Fluid

Excitation of Alfvén waves by fast particles in a finite pressure plasma of adiabatic traps

1978 ◽  
Vol 20 (1) ◽  
pp. 137-148 ◽  
Author(s):  
B. I. Meerson ◽  
A. B. Mikhallovskii ◽  
O. A. Pokhotelov
Keyword(s):  
Uniform Magnetic Field ◽  
Alfven Waves ◽  
Larmor Radius ◽  
Alfvén Waves ◽  
Trapped Particles ◽  
Resonance Effects ◽  
Finite Larmor Radius ◽  
Pressure Plasma ◽  
Pressure Stabilization ◽  
Instability Growth

Resonant excitation of Alfvén waves by fast particles in a finite pressure plasma in a non-uniform magnetic field is studied. Plasma compressibility in the wave field is determined both by the curvature of the magnetic lines of force and finite Larmor radius of fast particles. A general expression for the instability growth rate is obtained and analyzed; the applicability of the results obtained in the previous paper has also been studied. The finite pressure stabilization of the trapped particles instability has been found. The bounce-resonance effects are analyzed.

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