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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Charge dependence of neoclassical and turbulent transport of light impurities on MAST [PDF]
, 2015 Carbon and nitrogen impurity transport coefficients are determined from gas puff experiments carried out during repeat L-mode discharges on the Mega-Amp Spherical Tokamak (MAST) and compared against a previous analysis of helium impurity transport on ...
Casson, F. J. +10 more
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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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Classical and Neoclassical Transport in Tokamaks [PDF]
Fusion Science and Technology, 2012 These lecture notes provide a short overview of classical and neoclassical transport in tokamaks.
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Intrinsic rotation in tokamaks: theory [PDF]
, 2015 Self-consistent equations for intrinsic rotation in tokamaks with small poloidal magnetic field $B_p$ compared to the total magnetic field $B$ are derived.
Barnes, Michael, Parra, Felix I.
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Monte Carlo computations of neoclassical transport [PDF]
The Physics of Fluids, 1988 Neoclassical transport coefficients and confinement times in stellarators of general geometry and tokamaks with and without ripple are computed by Monte Carlo simulation over wide ranges of mean free paths, ratios of plasma to gyroradius, and radial electric fields.
Lotz, W., Nuehrenberg, J.
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Locality effects on bifurcation paradigm of L-H transition in tokamak plasmas [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2015 The locality effects on bifurcation paradigm of L-H transition phenomenon in magnetic confinement plasmas are investigated. One dimensional thermal transport equation with both neoclassical and anomalous transports effects included is considered, where
Boonyarit Chatthong, Thawatchai Onjun
doaj
Neoclassical transport optimization of LHD
Nuclear Fusion, 2002 Neoclassical transport is studied for large helical device (LHD) configurations in which the magnetic axis has been shifted radially by determining the mono-energetic transport coefficient and the effective helical ripple. With respect to the transport in the long mean-free-path collisionality region—the so-called 1/ν transport—the optimum ...
Murakami, S. +6 more
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Transition in particle transport under resonant magnetic perturbations in a tokamak
Nuclear Fusion, 2023 Nonlinear 3D MHD simulations and validations reveal that the hybrid particle-MHD transport is a key process for driving the pump-out in the presence of Resonant Magnetic Perturbations (RMPs) in the KSTAR tokamak.
S.K. Kim +11 more
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How to calculate the neoclassical viscosity, diffusion, and current coefficients in general toroidal plasmas [PDF]
, 2002 A novel method to obtain the full neoclassical transport matrix for general toroidal plasmas by using the solution of the linearized drift kinetic equation with the pitch-angle-scattering collision operator is shown.
H. Sugama, Nakajima N., S. Nishimura
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