Nonlinear reversed-field pinch dynamics with nonideal boundaries

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physics of Fluids B; (United States)

DOI:https://doi.org/10.1063/1.859790· OSTI ID:5216689

Ho, Y L; Prager, S C ^[1]

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1. University of Wisconsin, Madison, Wisconsin (USA)

The nonlinear behavior of the reversed-field pinch bounded by a resistive shell or a distant conducting wall is investigated with a three-dimensional magnetohydrodynamic code. Nonlinear interaction between modes enhances fluctuation levels as the conducting wall is removed. The enhanced fluctuation induced {bold v}{times}{bold b} electric field, which produces the dynamo effect, suppresses toroidal current, and enhances surface helicity dissipation. Thus, loop voltage must increase to sustain the current and maintain helicity balance.

• OSTI ID: 5216689
• Journal Information: Physics of Fluids B; (United States), Journal Name: Physics of Fluids B; (United States) Vol. 3:11; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BOUNDARY CONDITIONS
COMPUTER CALCULATIONS
CONFIGURATION
CONFINEMENT
CYLINDRICAL CONFIGURATION
FLUCTUATIONS
FLUID MECHANICS
HELICITY
HYDRODYNAMICS
INSTABILITY
MAGNETOHYDRODYNAMICS
MECHANICS
PARTICLE PROPERTIES
PINCH EFFECT
PLASMA CONFINEMENT
PLASMA INSTABILITY
REVERSE-FIELD PINCH
THREE-DIMENSIONAL CALCULATIONS
VARIATIONS
WALL EFFECTS