Non linear electrostatic turbulence
A variational method expressing the self consistency of electrostatic turbulence in a confined plasma is presented. It properly takes into account all types of resonances if the Kolmogorov broadening due to the diffusion is small, compared to the spectral width of the turbulent electric potential. The method is applied to study the possibility of a new type of drift turbulence in tokamaks where the various models are strongly localised by non-linear effects around their resonant surface. The passing electrons play a major role in driving such a turbulence, a result compatible with the observed increase of transport at the edge.
Bibliographic Reference: Report: EUR-CEA-FC-1468 EN (1993) 33 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Record Number: 199311100 / Last updated on: 1994-11-29
Original language: en
Available languages: en