Influence of the centrifugal force and parallel dynamics on the toroidal momentum transport due to small scale turbulence in a tokamak

Peeters, AG; Strintzi, D; Camenen, Y; Angioni, C; Casson, FJ; Hornsby, WA; Snodin, AP

dc.contributor.author	Peeters, AG	en
dc.contributor.author	Strintzi, D	en
dc.contributor.author	Camenen, Y	en
dc.contributor.author	Angioni, C	en
dc.contributor.author	Casson, FJ	en
dc.contributor.author	Hornsby, WA	en
dc.contributor.author	Snodin, AP	en
dc.date.accessioned	2014-03-01T01:30:56Z
dc.date.available	2014-03-01T01:30:56Z
dc.date.issued	2009	en
dc.identifier.issn	1070-664X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19678
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Centrifugal forces	en
dc.subject.other	Coriolis	en
dc.subject.other	Drift effects	en
dc.subject.other	Fluid models	en
dc.subject.other	Kinetic equations	en
dc.subject.other	Laboratory frames	en
dc.subject.other	Low-field sides	en
dc.subject.other	Momentum transports	en
dc.subject.other	Pinch velocities	en
dc.subject.other	Plasma rotations	en
dc.subject.other	Rotating plasmas	en
dc.subject.other	Shear effects	en
dc.subject.other	Sign reversals	en
dc.subject.other	Small scale turbulences	en
dc.subject.other	Fusion reactors	en
dc.subject.other	Gravitation	en
dc.subject.other	Gyroscopes	en
dc.subject.other	Integral equations	en
dc.subject.other	Kinetic energy	en
dc.subject.other	Kinetic theory	en
dc.subject.other	Kinetics	en
dc.subject.other	Momentum transfer	en
dc.subject.other	Plasma confinement	en
dc.subject.other	Plasma diagnostics	en
dc.subject.other	Rotation	en
dc.subject.other	Shear flow	en
dc.subject.other	Transport properties	en
dc.title	Influence of the centrifugal force and parallel dynamics on the toroidal momentum transport due to small scale turbulence in a tokamak	en
heal.type	journalArticle	en
heal.identifier.primary	10.1063/1.3097263	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.3097263	en
heal.identifier.secondary	042310	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The paper derives the gyro-kinetic equation in the comoving frame of a toroidally rotating plasma, including both the Coriolis drift effect [A. G. Peeters et al., Phys. Rev. Lett. 98, 265003 (2007)] as well as the centrifugal force. The relation with the laboratory frame is discussed. A low field side gyro-fluid model is derived from the gyro-kinetic equation and applied to the description of parallel momentum transport. The model includes the effects of the Coriolis and centrifugal force as well as the parallel dynamics. The latter physics effect allows for a consistent description of both the Coriolis drift effect as well as the ExB shear effect [R. R. Dominguez and G. M. Staebler, Phys. Fluids B 5, 3876 (1993)] on the momentum transport. Strong plasma rotation as well as parallel dynamics reduce the Coriolis (inward) pinch of momentum and can lead to a sign reversal generating an outward pinch velocity. Also, the ExB shear effect is, in a similar manner, reduced by the parallel dynamics and stronger rotation. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3097263]	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Physics of Plasmas	en
dc.identifier.doi	10.1063/1.3097263	en
dc.identifier.isi	ISI:000266885800028	en
dc.identifier.volume	16	en
dc.identifier.issue	4	en