Tokamak toroidal rotation caused by AVDEs and ELMs

Toroidal rotation can be produced by disruptions, as observed in several experiments. There is a concern that rotating asymmetric forces during an ITER disruption might resonate with the blanket and other structures surrounding the plasma. Here it is shown, both computationally using the M3D code, a...

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Bibliographic Details
Published in:Nuclear fusion 2014-04, Vol.54 (4), p.43017-7
Main Authors: Strauss, H., Sugiyama, L., Paccagnella, R., Breslau, J., Jardin, S.
Format: Article
Language:English
Subjects:
Asymmetry
AVDE
Displacement
Disruption
ELM
Law
Mathematical analysis
Nuclear fusion
Tokamak devices
tokamak rotation disruption
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Summary:Toroidal rotation can be produced by disruptions, as observed in several experiments. There is a concern that rotating asymmetric forces during an ITER disruption might resonate with the blanket and other structures surrounding the plasma. Here it is shown, both computationally using the M3D code, and analytically, that toroidal rotation is produced by magnetohydrodynamic turbulence. In particular, rotation is produced during an asymmetric vertical displacement event (AVDE) disruption. Toroidal and poloidal rotation are also produced during edge localized modes (ELMs), and may be consistent with a scaling law found for intrinsic toroidal rotation in H-mode tokamaks.
ISSN:0029-5515
1741-4326
DOI:10.1088/0029-5515/54/4/043017