Wall forces produced during ITER disruptions

H.R. Strauss, R. Paccagnella, J. Breslau

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Abstract

Nonlinear simulations with the M3D code [W. Park, 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, 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 γ τwis obtained, where γ is the kink growth rate and τwis the wall penetration time. The largest force occurs with γ τw≈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, Nucl. Fusion 49, 055012 (2009)] experiments. In particular, the theory and simulations give dependence of the sideways on γ τw, correlation of sideways force with sideways plasma displacement, and correlation of toroidally varying plasma current with toroidally varying vertical displacement. © 2010 American Institute of Physics.
Original languageEnglish
Article number082505
Pages (from-to)-
JournalPhysics of Plasmas
Volume17
Issue number8
DOIs
Publication statusPublished - Aug 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Strauss, H. R., Paccagnella, R., & Breslau, J. (2010). Wall forces produced during ITER disruptions. Physics of Plasmas, 17(8), -. [082505]. https://doi.org/10.1063/1.3474922