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research article
X-Point-Position-Dependent Intrinsic Toroidal Rotation in the Edge of TCV
Edge intrinsic rotation was investigated in Ohmic L-mode discharges on the Tokamak a Configuration Variable, scanning the major radial position of the X point, R-X. Edge rotation decreased linearly with increasing RX, vanishing or becoming countercurrent for an outboard X point, in agreement with theoretical expectations. The core rotation profile shifted fairly rigidly with the edge rotation, changing the central rotation speed by more than a factor of two. Core rotation reversals had little effect on the edge rotation velocity. Edge rotation was modestly more countercurrent in unfavorable than favorable del B shots.
Type
research article
Web of Science ID
WOS:000356407600003
Authors
Stoltzfus-Dueck, T
•
Karpushov, Alexander
•
Sauter, Olivier
•
Duval, Basil
•
Labit, Benoît
•
Reimerdes, Holger
•
Vijvers, Wouter
•
Camenen, Y
Publication date
2015
Publisher
Published in
Volume
114
Issue
24
Article Number
245001
Peer reviewed
REVIEWED
Available on Infoscience
June 18, 2015
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