Plasma Turbulence in the Scrape-off Layer of the ISTTOK Tokamak
arXiv:1606.09538 · doi:10.1063/1.4964783
Abstract
The properties of plasma turbulence in a poloidally limited scrape-off layer (SOL) are addressed, with focus on ISTTOK, a large aspect ratio tokamak with a circular cross section. Theoretical investigations based on the drift-reduced Braginskii equations are carried out through linear calculations and non-linear simulations, in two- and three-dimensional geometries. The linear instabilities driving turbulence and the mechanisms that set the amplitude of turbulence as well as the SOL width are identified. A clear asymmetry is shown to exist between the low-field and the high-field sides of the machine. A comparison between experimental measurements and simulation results is presented.
arXiv comment24 pages, 15 figures, Accepted for publication - Physics of Plasmas
References in corpus (1)
Cited by in corpus (4)
- Hermes: Global plasma edge fluid turbulence simulations
- A Drift-Kinetic Analytical Model for SOL Plasma Dynamics at Arbitrary Collisionality
- Characterization of edge and scrape-off layer fluctuations using the fast Li-BES system on COMPASS
- A Flux-Balanced Fluid Model for Collisional Plasma Edge Turbulence: Numerical Simulations with Different Aspect Ratios