Results 21 to 30 of about 4,286 (293)
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
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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
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Scrape‐Off Layer Turbulence Theory and Simulations [PDF]
Contributions to Plasma Physics, 1998 AbstractSignificant investigations in the area of scrape‐off layer (SOL) turbulence theory and simulations are reviewed. The paper begins with description and derivation of the various models investigating specific linear modes as well as a discussion of the regions of validity.
Xu, X.Q., Cohen, R.H.
openaire +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
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Divertor erosion at ASDEX Upgrade during helium plasma operations
Nuclear Materials and EnergyThe effect of helium plasma operation on the erosion of plasma-facing components at the low-field side divertor of ASDEX Upgrade was investigated during the 2022 helium experimental campaign. A set of tungsten-covered graphite samples with small platinum
Tomi Vuoriheimo +10 more
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Detachment scalings derived from 1D scrape-off-layer simulations
Nuclear Materials and EnergyFusion power plants will require detachment to mitigate sputtering and keep divertor heat fluxes at tolerable levels. Controlling detachment on these devices may require the use of real-time scrape-off-layer modeling to complement the limited set of ...
Thomas Body +6 more
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Kinetic simulations of electron heat flux in the scrape-off layer
Nuclear Materials and Energy, 2017 Parallel electron heat flux qe|| on open field lines is studied with the 1D2V kinetic Vlasov-Fokker-Planck (VFP) code KIPP [15–17]. In order to assess the importance of kinetic effects on the scrape-off layer heat transport in a systematic way, a series ...
M. Zhao, A.V. Chankin, D.P. Coster
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Non‐local heat flux application for scrape‐off layer plasma [PDF]
Contributions to Plasma Physics, 2018 The non‐local expression proposed by Luciani‐Mora‐Virmont is implemented in a one dimensional fluid model for the scrape‐off layer. Analytical solutions for heat equation are discussed as well as the impact of sheath boundary conditions on the continuity of the temperature profile.
Bufferand, Hugo +9 more
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Effect of local wall clearance on scrape-off layer electron density profiles in ASDEX Upgrade
Nuclear FusionThe plasma electron density is measured with multiple diagnostics in the scrape-off layer of the ASDEX Upgrade tokamak. The recorded values are typically in good agreement in the case of exponentially decaying profiles at low densities, but they become ...
B. Tal +16 more
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