Impact of the background toroidal rotation on particle and heat turbulent transport in tokamak plasmas

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

dc.contributor.author	Camenen, Y	en
dc.contributor.author	Peeters, AG	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.contributor.author	Strintzi, D	en
dc.date.accessioned	2014-03-01T01:30:52Z
dc.date.available	2014-03-01T01:30:52Z
dc.date.issued	2009	en
dc.identifier.issn	1070-664X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19662
dc.subject	drift instability	en
dc.subject	plasma impurities	en
dc.subject	plasma simulation	en
dc.subject	plasma toroidal confinement	en
dc.subject	plasma transport processes	en
dc.subject	plasma turbulence	en
dc.subject	Tokamak devices	en
dc.subject.classification	Physics, Fluids & Plasmas	en
dc.subject.other	Fluxes	en
dc.subject.other	Fusion reactors	en
dc.subject.other	Gravitation	en
dc.subject.other	Plasma diagnostics	en
dc.subject.other	Plasmas	en
dc.subject.other	Programming theory	en
dc.subject.other	Rotation	en
dc.subject.other	Centrifugal Forces	en
dc.subject.other	Charge numbers	en
dc.subject.other	Coriolis	en
dc.subject.other	Fluid models	en
dc.subject.other	Gyrokinetic	en
dc.subject.other	Gyrokinetic theories	en
dc.subject.other	Local densities	en
dc.subject.other	Low-field sides	en
dc.subject.other	Main effects	en
dc.subject.other	Momentum transports	en
dc.subject.other	Parallel modes	en
dc.subject.other	Particle fluxes	en
dc.subject.other	Particle transports	en
dc.subject.other	Plasma rotations	en
dc.subject.other	Small-scale instabilities	en
dc.subject.other	Spherical tokamaks	en
dc.subject.other	Tokamak plasmas	en
dc.subject.other	Toroidal rotations	en
dc.subject.other	Turbulent transports	en
dc.subject.other	Velocity perturbations	en
dc.subject.other	Plasma stability	en
dc.title	Impact of the background toroidal rotation on particle and heat turbulent transport in tokamak plasmas	en
heal.type	journalArticle	en
heal.identifier.primary	10.1063/1.3057356	en
heal.identifier.secondary	http://dx.doi.org/10.1063/1.3057356	en
heal.identifier.secondary	012503	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Recent developments in the gyrokinetic theory have shown that, in a toroidal device, the Coriolis drift associated with the background plasma rotation significantly affects the small scale instabilities [A. G. Peeters, Phys. Rev. Lett. 98, 265003 (2007)]. The later study, which focuses on the effect of the Coriolis drift on toroidal momentum transport is extended in the present paper to heat and particle transport. It is shown numerically using the gyrokinetic flux-tube code GKW [A. G. Peeters and D. Strintzi, Phys. Plasmas 11, 3748 (2004)], and supported analytically, that the Coriolis drift and the parallel dynamics play a similar role in the coupling of density, temperature, and velocity perturbations. The effect on particle and heat fluxes increases with the toroidal rotation (directly) and with the toroidal rotation gradient (through the parallel mode structure), depends on the direction of propagation of the perturbation, increases with the impurity charge number and with the impurity mass to charge number ratio. The case of very high toroidal rotation, relevant to spherical tokamaks, is investigated by including the effect of the centrifugal force in a fluid model. The main effect of the centrifugal force is to decrease the local density gradient at the low field side midplane and to add an extra contribution to the fluxes. The conditions for which the inertial terms significantly affect the heat and particle fluxes are evidenced. © 2009 American Institute of Physics.	en
heal.publisher	AMER INST PHYSICS	en
heal.journalName	Physics of Plasmas	en
dc.identifier.doi	10.1063/1.3057356	en
dc.identifier.isi	ISI:000262967900016	en
dc.identifier.volume	16	en
dc.identifier.issue	1	en