First-order finite-Larmor-radius effects on magnetic tearing in pinch configurations

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

Rayleigh-Taylor Instability of a Compressible Plasma with Finite Larmor Radius Effects

The Rayleigh-Taylor instability of a compressible plasma in the presence of a horizontal magnetic field is investigated, taking into account the effects of finite Larmor radius. Only transverse perturbations are considered. The problem is shown to be characterized by a variational principle. Using it, the dispersion relation is obtained for a plasma layer of finite thickness and having an expon...

Finite Larmor Radius Effects on the Magnetorotational Instability

The linear dispersion relation for the magnetorotational instability (MRI) is derived including finite Larmor radius (FLR) effects. In particular, the Braginskii form of the ion gyroviscosity, which represents the first-order FLR corrections to the two-fluid equations, is retained. It is shown that FLR effects are the most important effects in the limit of weak magnetic fields, and are much mor...

UW-CPTC 15-6 Two-Fluid and Finite Larmor Radius Effects on Helicity Evolution in a Plasma Pinch

Two-Fluid and Finite Larmor Radius Effects on Helicity Evolution in a Plasma Pinch J. P. Sauppe 2, a) and C. R. Sovinec 3, b) Center for Plasma Theory and Computation, 1500 Engineering Drive, Madison, WI 53706, USA Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, WI 53706, USA Department of Engineering-Physics, University of Wisconsin-Madison, 1500 Engine...

Stability of Axisymmetric Plasmas in Closed Line Magnetic Fields

The stability of axisymmetric plasmas confined by closed poloidal magnetic field lines is considered. The results are relevant to plasmas in the dipolar fields of stars and planets, as well as the Levitated Dipole Experiment, multipoles, Z pinches and field reversed configurations. The ideal MHD energy principle is employed to study the stability of pressure driven shear Alfvén modes. A point d...