TY - GEN
T1 - Modelling of rotating plasma states under the influence of helical perturbations
AU - Nicolai, A.
AU - Daybelge, U.
AU - Yarim, C.
PY - 2005
Y1 - 2005
N2 - The parallel and poloidal rotation speeds are calculated on the basis of the ambipolarity constraint and the parallel momentum equation of the revisited neoclassical theory. The temperature is estimated by means of the power balance. Source terms account for the momentum deposition by neutral beam injection, the eddy currents in the wall, pressure anisotropization and the j×B force density. The main results are: (1) At a DED (TEXTOR) frequency of 10 kHz a toroidal velocity gradient of 1.2 106 1/sec may be achieved and thus an ITB be generated. (2) The (subneoclassical) pressure pedestal in a (rotating) medium size H - mode plasma may be stabilized against the ballooning-peeling instability by ergodization.
AB - The parallel and poloidal rotation speeds are calculated on the basis of the ambipolarity constraint and the parallel momentum equation of the revisited neoclassical theory. The temperature is estimated by means of the power balance. Source terms account for the momentum deposition by neutral beam injection, the eddy currents in the wall, pressure anisotropization and the j×B force density. The main results are: (1) At a DED (TEXTOR) frequency of 10 kHz a toroidal velocity gradient of 1.2 106 1/sec may be achieved and thus an ITB be generated. (2) The (subneoclassical) pressure pedestal in a (rotating) medium size H - mode plasma may be stabilized against the ballooning-peeling instability by ergodization.
UR - http://www.scopus.com/inward/record.url?scp=84873365710&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84873365710
SN - 9781622763320
T3 - 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
SP - 702
EP - 705
BT - 32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
T2 - 32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
Y2 - 27 June 2005 through 1 July 2005
ER -