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10 papers · 2 filters
Investigation of the Effect of Resistivity on Scrape Off Layer Filaments using Three Dimensional Simulations
Luke Easy, Fulvio Militello, John Omotani +2
The propagation of filaments in the Scrape Off Layer (SOL) of tokamaks largely determine the plasma profiles in the region. In a conduction limited SOL, parallel temperature gradie…
Numerical investigation of isolated filament motion in a realistic tokamak geometry
N. R. Walkden, B. D. Dudson, L. Easy +2
This paper presents a numerical investigation of isolated filament dynamics in a simulation geometry representative of the scrape-off layer (SOL) of the Mega Amp Spherical Tokamak…
Charge dependence of neoclassical and turbulent transport of light impurities on MAST
S. S. Henderson, L. Garzotti, F. J. Casson +8
Carbon and nitrogen impurity transport coefficients are determined from gas puff experiments carried out during repeat L-mode discharges on the Mega-Amp Spherical Tokamak (MAST) an…
On the validity of drift-reduced fluid models for tokamak plasma simulation
Jarrod Leddy, Ben Dudson, Michele Romanelli
Drift-reduced plasma fluid models are commonly used in plasma physics for analytics and simulations; however, the validity of such models must be verified for the regions of parame…
The effects of shape and amplitude on the velocity of scrape-off layer filaments
J. T. Omotani, F. Militello, L. Easy +1
A complete model of the dynamics of scrape-off layer filaments will be rather complex, including temperature evolution, three dimensional geometry and finite Larmor radius effects.…
Kinetic simulations of X-B and O-X-B mode conversion
A. V. Arefiev, E. J. Du Toit, A. Köhn +3
We have performed fully-kinetic simulations of X-B and O-X-B mode conversion in one and two dimensional setups using the PIC code EPOCH. We have recovered the linear dispersion rel…