Published December 2010 | Version v1
Journal article Metadata-only

Magnetohydrodynamic simulation of kink instability and plasma flow during sustainment of a coaxial gun spheromak

Creators

  • 1. Japan Coast Guard Academy, Department of Maritime Science and Technology, Kure, Hiroshima (Japan)
  • 2. University of Hyogo, Department of Electrical Engineering and Computer Sciences, Himeji, Hyogo (Japan)
  • 3. Research Organization for Information Science and Technology, Tokai, Ibaraki (Japan)

Description

Kink instability and the subsequent plasma flow during the sustainment of a coaxial gun spheromak are investigated by three-dimensional nonlinear magnetohydrodynamic simulations. Analysis of the parallel current density λ profile in the central open column revealed that the n = 1 mode structure plays an important role in the relaxation and current drive. The toroidal flow (vt ≈ 37 km/s) is driven by magnetic reconnection occurring as a result of the helical kink distortion of the central open column during repetitive plasmoid ejection and merging. (author)

Additional details

Publishing Information

Journal Title
Plasma and Fusion Research
Journal Volume
5
Journal Issue
special issue 2
Journal Page Range
p. S2055.1-S2055.4
ISSN
1880-6821

Conference

Title
19. international Toki conference on advanced physics in plasma and fusion research
Acronym
ITC-19
Dates
8-11 Dec 2009
Place
Toki, Gifu (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
46022788
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ELECTRIC CURRENTS; FLUID FLOW; HELICITY; INDUCTION; INJECTION; KINK INSTABILITY; MAGNETIC RECONNECTION; MAGNETOHYDRODYNAMICS; NONLINEAR PROBLEMS; PLASMA; POLOIDAL FIELD DIVERTORS; SIMULATION; SPHEROMAK DEVICES; THREE-DIMENSIONAL CALCULATIONS; TOROIDAL FIELD DIVERTORS
Descriptors DEC
CLOSED PLASMA DEVICES; CURRENTS; DIVERTORS; FLUID MECHANICS; HYDRODYNAMICS; INSTABILITY; INTAKE; MECHANICS; PARTICLE PROPERTIES; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; THERMONUCLEAR DEVICES; TOKAMAK DEVICES

Optional Information

Notes
13 refs., 4 figs.