Neoclassical transport in helically symmetric plasmas [PDF]
The Physics of Fluids, 1981 The neoclassical rate of diffusion is calculated in such a way that the result is applicable to both helically symmetric and toroidally symmetric plasmas.
Pytte, A., Boozer, Allen H.
openaire +4 more sources
Natural poloidal asymmetry and neoclassical transport of impurities in tokamak plasmas
Plasma Physics and Controlled Fusion, 2019 The neoclassical transport of impurities is investigated for a plasma without toroidal rotation nor anisotropic ion temperature. It is shown that a natural poloidal asymmetry of the impurity density exists in this case, and that it can be described with ...
P. Maget +5 more
semanticscholar +1 more source
Benchmark of the local drift-kinetic models for neoclassical transport simulation in helical plasmas [PDF]
, 2016 The benchmarks of the neoclassical transport codes based on the several local drift-kinetic models are reported here. Here, the drift-kinetic models are zero orbit width (ZOW), zero magnetic drift, DKES-like, and global, as classified in Matsuoka et al. [
B. Huang +4 more
semanticscholar +1 more source
L-H transition dynamics in fluid turbulence simulations with neoclassical force balance [PDF]
, 2013 Spontaneous transport barrier generation at the edge of a magnetically confined plasma is investigated. To this end, a model of electrostatic turbulence in three-dimensional geometry is extended to account for the impact of friction between trapped and ...
C. Bourdelle +6 more
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Neoclassical resonant transport of a mirror cell [PDF]
, 2005 The neoclassical resonant plateau transport in a mirror cell is studied theoretically. The analytical expression for a non-square-well magnetic field is obtained. The analytical result is applied to the GAMMA10 tandem mirror [T. Cho, M.
Ito T., Katanuma I., 片沼 伊佐夫
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Prevention of core particle depletion in stellarators by turbulence
Physical Review Research, 2023 In reactor-relevant plasmas, neoclassical transport drives an outward particle flux in the core of large stellarators and predicts strongly hollow density profiles. However, this theoretical prediction is contradicted by experiments.
H. Thienpondt +12 more
doaj +1 more source
Cross-verification of neoclassical transport solutions from XGCa against NEO
Physics of Plasmas, 2019 Radial neoclassical transport from the global gyrokinetic code XGC has been cross-verified against the local drift-kinetic neoclassical code NEO in NEO's local regime using a Grad-Shafranov equilibrium with a circular boundary.
R. Hager, J. Dominski, C. Chang
semanticscholar +1 more source
Kinetic Simulations of Neoclassical and Anomalous Transport Processes in Helical Systems [PDF]
, 2012 Drift kinetic and gyrokinetic theories and simulations are powerful means for quantitative predictions of neoclassical and anomalous transport fluxes in helical systems such as the Large Helical Device (LHD).
Hideo SUGAMA +5 more
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Neoclassical toroidal plasma viscosity in bounce-transit and drift resonance regimes in tokamaks
Nuclear Fusion, 2023 Neoclassical toroidal plasma viscosity in the bounce-transit and drift resonance regimes is calculated using a version of the drift kinetic equation that encompasses the physics of the nonlinear trapping and quasilinear plateau regimes in tokamaks. It is
K.C. Shaing, M. Garcia-Munoz, E. Viezzer
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Preliminary Result of Neoclassical Impurity Transport Affected by ICRH with a 4-D Fokker-Planck Code [PDF]
EPJ Web of ConferencesTo understand the role of ion cyclotron resonance heating (ICRH) in mitigating tungsten accumulation, we evaluate the impact of ICRH-induced poloidal asymmetries on neoclassical impurity transport using a newly developed 4-D Fokker–Planck code (FP4D ...
Jeong Yunho +4 more
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