Results 11 to 20 of about 28,655 (296)
Stochastic modelling of intermittent scrape-off layer plasma fluctuations [PDF]
Physical Review Letters, 2012 Single-point measurements of fluctuations in the scrape-off layer of magnetized plasmas are generally found to be dominated by large-amplitude bursts which are associated with radial motion of blob-like structures.
H. L. Pécseli +4 more
core +4 more sources
A spectral filament model for turbulent transport and scrape off layer width in circular geometry
Nuclear Materials and Energy, 2019 Radial transport in scrape off layer is commonly attributed to the intermittent convection of plasma filaments. These filaments are observed in experiments, and commonly reproduced by turbulent simulations.
N. Fedorczak +5 more
doaj +3 more sources
Scrape off layer profiles interpreted with filament dynamics [PDF]
Nuclear Fusion, 2016 Abstract A theoretical framework is developed to link the density profiles in the scrape off layer (SOL) with the fluctuations (filaments) that generate them. The framework is based on the dynamics of independent filaments and their statistical behaviour and can be used to rigorously understand the mechanisms that lead to flattening and ...
Militello, F., Omotani, J. T.
openaire +4 more sources
Numerical Simulations of Intermittent Transport in Scrape-Off Layer Plasmas [PDF]
Physical Review Letters, 2003 Two-dimensional fluid simulations of interchange turbulence for geometry and parameters relevant for the scrape-off layer of confined plasmas are presented. We observe bursty ejection of particles and heat from the bulk plasma in the form of blobs. These
Garcia, Odd Erik +3 more
core +3 more sources
Nuclear Materials and EnergyThe scrape-off layer parallel heat flux decay lengths measured at ST40, a high field, low aspect ratio spherical tokamak, have been observed to bifurcate into two groups.
X. Zhang +16 more
doaj +3 more sources
Detached scrape-off layer tokamak plasmas [PDF]
Physics of Plasmas, 1994 The equilibrium and stability of scrape-off layer plasmas are considered using a one-dimensional treatment of coupled heat conduction and pressure balance equations. It is found that, for sufficiently low-temperature and high neutral density, a region of greatly reduced power flux to the endplate can be achieved.
Kesner, J.
core +3 more sources
Blob interactions in 2D scrape-off layer simulations [PDF]
Physics of Plasmas, 2020 Interaction of coherent structures known as blobs in the scrape-off layer of magnetically confined plasmas is investigated. Isolated and interacting seeded blobs, as well as full plasma turbulence, are studied by two-dimensional numerical simulations.
G. Decristoforo +6 more
openaire +3 more sources
Monte Carlo Scrape-off Layer Plasma [PDF]
Monte Carlo Scrape-off Layer PlasmaM. Okamoto +4 more
core +1 more source
ELM transport in the JET scrape-off layer [PDF]
Nuclear Fusion, 2007 This contribution summarizes a number of aspects of the experimental and modelling programme at JET aimed at improving the characterization and understanding of edge localized mode (ELM) transport in the scrape-off layer (SOL). Divertor target energy deposition asymmetries favouring the inner target for the ion B × ∇B drift directed towards the X-point
Pitts, R. +7 more
openaire +2 more sources
On the interaction of scrape off layer filaments [PDF]
Plasma Physics and Controlled Fusion, 2017 The interaction of L-mode and inter-ELM Scrape-Off Layer (SOL) filaments is investigated by simulating the dynamics of two seeded density perturbations with different initial separation. A numerical campaign of 2D and 3D simulations is presented to explore the effect that different filaments’ perpendicular size and relative distance have on their ...
F Militello +4 more
openaire +2 more sources