Turbulent relaxation to a force-free field-reversed state

Journal Article · Mon Jul 28 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.428· OSTI ID:5647705

Dahlburg, J P; Montgomery, D; Doolen, G D; Turner, L

The evolution of nonequilibrium initial conditions of an incompressible magnetohydrodynamic Z-italic pinch is described by a three-dimensional, pseudospectral numerical code. Magnetohydrodynamic turbulence develops in the resistive, nonviscous magnetofluid, resulting in the selective decay of the energy relative to the magnetic helicity, at Lundquist numbers of only a few hundred. An interior force-free region grows with time and achieves spontaneous reversal of the toroidal magnetic field at the wall, without the necessity of an external electric field.

• Research Organization: U. S. Naval Research Laboratory, Washington, D.C. 20375
• OSTI ID: 5647705
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:4; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640430* -- Fluid Physics-- Magnetohydrodynamics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANNULAR SPACE
CONFIGURATION
DATA
EQUILIBRIUM
FLUID FLOW
FLUID MECHANICS
HELICITY
HYDRODYNAMICS
INCOMPRESSIBLE FLOW
INFORMATION
LINEAR PINCH DEVICES
LINEAR Z PINCH DEVICES
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELD REVERSAL
MAGNETIC FLUX
MAGNETOHYDRODYNAMICS
MATHEMATICS
MECHANICS
NUMERICAL ANALYSIS
NUMERICAL DATA
OPEN PLASMA DEVICES
PARTICLE PROPERTIES
PINCH DEVICES
PLASMA
RELAXATION
SPACE
THEORETICAL DATA
THERMONUCLEAR DEVICES
THREE-DIMENSIONAL CALCULATIONS
TOROIDAL CONFIGURATION
TURBULENCE