21 citations · 51 across the 5 of their papers we have counts for
5 papers
Positivity-preserving scheme for two-dimensional advection-diffusion equations including mixed derivatives
Erasmus J. du Toit, Martin R. O'Brien, Roddy G. L. Vann
In this work, we propose a positivity-preserving scheme for solving two-dimensional advection-diffusion equations including mixed derivative terms, in order to improve the accuracy…
Kinetic study of plasma current start-up under EBW power in tokamak plasmas
Erasmus J. du Toit, Martin R. O'Brien, Roddy G. L. Vann
Tokamak plasma current start-up assisted by Electron Bernstein waves (EBW) has been demonstrated successfully in a number of experiments. The dynamic start-up phase involves a chan…
A kinetic study of microwave start-up of tokamak plasmas
Erasmus J. du Toit, Martin R. O'Brien, Roddy G. L. Vann
A kinetic model for studying the time evolution of the distribution function for microwave start-up is presented. The model for the distribution function is two dimensional in mome…
Overview of recent physics results from MAST
A Kirk, J Adamek, RJ Akers +160
New results from MAST are presented that focus on validating models in order to extrapolate to future devices. Measurements during start-up experiments have shown how the bulk ion…
Propagation in 3D of microwaves through density perturbations
T. R. N. Williams, A. Köhn, M. R. O'Brien +1
Simulations using 3D and 2D full-wave codes have shown that edge filaments in tokamak plasmas can significantly affect the propagation of microwaves across a broad frequency spectr…