Wall forces produced during ITER disruptions

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3474922· OSTI ID:21432224

Strauss, H R ^[1]; Paccagnella, R ^[2]; Breslau, J ^[3]

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1. HRS Fusion, West Orange, New Jersey 07052 (United States)
2. Consorzio RFX, Istituto Gas Ionizzati (CNR), 35127 Padua (Italy)
3. Princeton Plasma Physics Laboratory, Princeton, New Jersey 08570 (United States)

Nonlinear simulations with the M3D code [W. Park et al., Phys. Plasmas 6, 1796 (1999)] are performed of disruptions produced by large scale magnetohydrodynamic instabilities. The toroidally asymmetric wall forces produced during a disruption are calculated in an ITER [T. Hender et al., Nucl. Fusion 47, S128 (2007)] model. The disruption is produced by a vertical displacement event and a kink mode. Expressions are derived for the wall force, including the sideways force, using a thin conducting wall model. The scaling of wall force with {gamma}{tau}{sub w} is obtained, where {gamma} is the kink growth rate and {tau}{sub w} is the wall penetration time. The largest force occurs with {gamma}{tau}{sub w{approx_equal}}1. A theory is developed of the wall force produced by kink modes. The theory is in qualitative agreement with the simulations and Joint European Torus [V. Riccardo et al., Nucl. Fusion 49, 055012 (2009)] experiments. In particular, the theory and simulations give dependence of the sideways on {gamma}{tau}{sub w}, correlation of sideways force with sideways plasma displacement, and correlation of toroidally varying plasma current with toroidally varying vertical displacement.

• OSTI ID: 21432224
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 17; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CLOSED PLASMA DEVICES
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
ITER TOKAMAK
JET TOKAMAK
MAGNETOHYDRODYNAMICS
MECHANICS
NONLINEAR PROBLEMS
PLASMA
PLASMA INSTABILITY
PLASMA SIMULATION
SIMULATION
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
WALL EFFECTS