Characterisation of Ion-Temperature-Gradient-Driven (ITG) Modes in the W VII-X Stellarator Configuration
Micro-instabilities, ion acoustic (drift) waves, destabilized by spatial inhomogeneities, are commonly held responsible for anomalous transport in tokamaks. Optimized stellarator configurations such as W VII-X  should reduce neo-classical transport to a level close to that found in tokamaks. At this point anomalous transport properties may become dominant. Thus it is now necessary to develop tools for the study of drift wave turbulence in three dimensional geometries. In this article we present results from both linear and non-linear Particle-In-Cell, global, gyrokinetic simulations, the former in the full 3-D geometry, the latter in an appropriate system of reduced dimensionality.
Bibliographic Reference: An oral report given at: The 28th EPS Conference of Controlled Fusion and Plasma Physics. Held in: Madeira (PT) June 2001
Record Number: 200013688 / Last updated on: 2001-09-18
Original language: en
Available languages: en