83 citations · 386 across the 18 of their papers we have counts for
18 papers
ReMKiT1D -- A framework for building reactive multi-fluid models of the tokamak Scrape-Off Layer with coupled electron kinetics in 1D
Stefan Mijin, Dominic Power, Ryan Holden +3
In this manuscript we present the recently developed flexible framework for building both fluid and electron kinetic models of the tokamak Scrape-Off Layer in 1D - ReMKiT1D (Reacti…
Scaling laws for electron kinetic effects in tokamak scrape-off layer plasmas
Dominic Power, Stefan Mijin, Michael Wigram +2
Tokamak edge (scrape-off layer) plasmas can exhibit non-local transport in the direction parallel to the magnetic field due to steep temperature gradients. This effect along with i…
Comparing Two- and Three-Dimensional Models of Scrape-Off-Layer Turbulent Transport
T. E. G. Nicholas, J. Omotani, F. Riva +2
There exists a large body of previous work using reduced two-dimensional models of the SOL, which model fluctuations in the drift-plane but approximate parallel transport with effe…
SOL-KiT -- fully implicit code for kinetic simulation of parallel electron transport in the tokamak Scrape-Off Layer
Stefan Mijin, Abetharan Antony, Fulvio Militello +1
Here we present a new code for modelling electron kinetics in the tokamak Scrape-Off Layer (SOL). SOL-KiT (Scrape-Off Layer Kinetic Transport) is a fully implicit 1D code with kine…
Dependence on ion temperature of shallow-angle magnetic presheaths with adiabatic electrons
Alessandro Geraldini, Felix I Parra, Fulvio Militello
The magnetic presheath is a boundary layer occurring when magnetized plasma is in contact with a wall and the angle between the wall and the magnetic field is oblique…
Stability of scrape-off layer plasma: a modified Rayleigh-Benard problem
Fryderyk Wilczynski, David W. Hughes, Sven Van Loo +2
We present a linear stability analysis of a two-dimensional fluid model used to study the plasma dynamics in the scrape-off layer of tokamaks. The model equations are based on the…
Influence of plasma background on 3D scrape-off layer filaments
David Schwörer, Nicholas R Walkden, Huw Leggate +4
This paper presents the effect of self-consistent plasma backgrounds including plasma-neutral interactions, on the dynamics of filament propagation. The principle focus is on the i…
Quiescence near the X-point of MAST measured by high speed visible imaging
N. R. Walkden, J. Harrison, S. A. Silburn +5
Using high speed imaging of the divertor volume, the region close to the X-point in MAST is shown to be quiescent. This is confirmed by three different analysis techniques and the…
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…
Gyrokinetic treatment of a grazing angle magnetic field
Alessandro Geraldini, Felix I. Parra, Fulvio Militello
We develop a gyrokinetic treatment for ions in the magnetic presheath, close to the plasma-wall boundary. We focus on magnetic presheaths with a small magnetic field to wall angle,…
Dynamics of 3D isolated thermal filaments
N. R. Walkden, L. Easy, F. Militello +1
Simulations have been carried out to establish how electron thermal physics, introduced in the form of a dynamic electron temperature, affects isolated filament motion and dynamics…
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…
3D Simulations of Plasma Filaments in the Scrape Off Layer: A Comparison with Models of Reduced Dimensionality
Luke Easy, Fulvio Militello, John Omotani +5
This paper presents simulations of isolated 3D filaments in a slab geometry obtained using a 3D reduced fluid code. First, systematic scans were performed to investigate how the dy…
Numerical investigation of Scrape Off Layer anomalous particle transport for MAST parameters
F Militello, W Fundamenski, V Naulin +1
Numerical simulations of L-mode plasma turbulence in the Scrape Off Layer of MAST are presented. Relevant features of the boundary plasma, such as the thickness of the density laye…
Analysis of Lithium Driven Electron Density Peaking in FTU Liquid Lithium Limiter Experiments
G. Szepesi, M. Romanelli, F. Militello +7
The impact of lithium impurities on the microstability and turbulent transport characteristics in the core of a typical FTU Liquid Lithium Limiter (LLL)(Mazzitelli et al., Nucl. Fu…
Experimental and numerical characterisation of the turbulence in the Scrape-Off Layer of MAST
F. Militello, P. Tamain, W. Fundamenski +4
Numerical simulations of interchange turbulence in the Scrape-Off Layer are performed in a regime relevant for a specific L-mode MAST (Mega Ampere Spherical Tokamak) discharge. Suc…
Effect of current corrugations on the stability of the tearing mode
F. Militello, M. Romanelli, R. J. Hastie +1
The generation of zonal magnetic fields in laboratory fusion plasmas is predicted by theoretical and numerical models and was recently observed experimentally. It is shown that the…
Influence of higher-order harmonics on the saturation of the tearing mode
N. Arcis, N. F. Loureiro, F. Militello
The nonlinear saturation of the tearing mode is revisited in slab geometry by taking into account higher-order harmonics in the outer solution. The general formalism for tackling t…