Nonlinear dynamics of magnetic islands with curvature and pressure

Journal Article · Tue Jan 01 00:00:00 EST 1985 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.865200· OSTI ID:6246025

Kotschenreuther, M; Hazeltine, R D; Morrison, P J

Curvature and finite pressure are known to have a dramatic influence on linear magnetic tearing stability. An analytic theory of the nonlinear resistive growth of magnetic islands in tokamaks that includes the interchange driving term in presented here. A Grad-Shafranov equation to describe the magnetohydrodynamic (MHD) equilibrium of thin islands is derived. The resistive evolution of these islands is then obtained. Interchange effects are found to become progressively less important with increasing island width.

• Research Organization: Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712
• OSTI ID: 6246025
• Journal Information: Phys. Fluids; (United States), Vol. 28:1
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
MAGNETIC ISLANDS
NONLINEAR PROBLEMS
PLASMA PRESSURE
EQUILIBRIUM
GRAD-SHAFRANOV EQUATION
INSTABILITY GROWTH RATES
MAGNETOHYDRODYNAMICS
TEARING INSTABILITY
TOKAMAK DEVICES
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
EQUATIONS
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MECHANICS
PARTIAL DIFFERENTIAL EQUATIONS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)
700101 - Fusion Energy- Plasma Research- Confinement
Heating
& Production