Results 11 to 20 of about 2,926 (263)
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
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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
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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
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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 +2 more sources
SOL parallel momentum loss in ASDEX Upgrade and comparison with SOLPS
Nuclear Materials and Energy, 2017 An H-mode database of ASDEX Upgrade plasmas with improved diagnostics for a variety of different plasma conditions has been analysed to study the momentum removal in the Scrape-Off Layer (SOL).
I. Paradela Pérez +5 more
doaj +1 more source
Plasma turbulence in the scrape-off layer of the ISTTOK tokamak [PDF]
Physics of Plasmas, 2016 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 ...
Rogério Jorge +4 more
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Nuclear Fusion, 2023 The dynamics of the screening effect of Ar impurity by the injection of additional Ne has been studied through time-dependent analysis with the integrated divertor code SONIC. In the preceding study (Yamoto et al 2020 Plasma Phys. Control.
Shohei Yamoto +4 more
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Reduced physics model of the tokamak Scrape-Off-Layer for pulse design
Nuclear Materials and Energy, 2023 The dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes boundary conditions on the core plasma, and neutral ...
X. Zhang +3 more
doaj +1 more source
Scaling laws for electron kinetic effects in tokamak scrape-off layer plasmas
Nuclear Fusion, 2023 Tokamak edge (scrape-off layer (SOL)) plasmas can exhibit non-local transport in the direction parallel to the magnetic field due to steep temperature gradients.
D. Power +4 more
doaj +1 more source
On the Turbulent Behavior of a Magnetically Confined Plasma near the X-Point
Fluids, 2022 We construct a model for the turbulence near the X-point of a Tokamak device and, under suitable assumptions, we arrive to a closed equation for the electric field potential fluctuations.
Giovanni Montani +2 more
doaj +1 more source