Wall forces produced during ITER disruptions
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 , S...
Gespeichert in:
Veröffentlicht in: | Physics of plasmas 2010-08, Vol.17 (8), p.082505-082505-9 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | 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
τ
w
is obtained, where
γ
is the kink growth rate and
τ
w
is the wall penetration time. The largest force occurs with
γ
τ
w
≈
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
τ
w
, correlation of sideways force with sideways plasma displacement, and correlation of toroidally varying plasma current with toroidally varying vertical displacement. |
---|---|
ISSN: | 1070-664X 1089-7674 |
DOI: | 10.1063/1.3474922 |