Fluid formalism for collisionless magnetized plasmas
- Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139-4307 (United States)
A comprehensive analysis of the finite-Larmor-radius (FLR) fluid moment equations for collisionless magnetized plasmas is presented. It is based on perturbative but otherwise general solutions for the second and third rank fluid moments (the stress and stress flux tensors), with closure conditions still to be specified on the fourth rank moment. The single expansion parameter is the ratio between the largest among the gyroradii and any other characteristic length, which is assumed to be small but finite in a magnetized medium. This formalism allows a complete account of the gyroviscous stress, the pressure anisotropy, and the anisotropic heat fluxes, and is valid for arbitrary magnetic geometry, arbitrary plasma pressure, and fully electromagnetic nonlinear dynamics. As the result, very general yet notably compact perturbative systems of FLR collisionless fluid equations, applicable to either fast (sonic or Alfvenic) or slow (diamagnetic) motions, are obtained.
- OSTI ID:
- 20722034
- Journal Information:
- Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 12; ISSN PHPAEN; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nonlinear Gyroviscous Force in a Collisionless Plasma
Nonlinear gyroviscous force in a collisionless plasma
Collisionless magnetohydrodynamics with gyrokinetic effects
Technical Report
·
Wed May 23 00:00:00 EDT 2001
·
OSTI ID:784555
Nonlinear gyroviscous force in a collisionless plasma
Journal Article
·
Sat Sep 01 00:00:00 EDT 2001
· Physics of Plasmas
·
OSTI ID:40277864
Collisionless magnetohydrodynamics with gyrokinetic effects
Journal Article
·
Wed Aug 15 00:00:00 EDT 2007
· Physics of Plasmas
·
OSTI ID:21072639