Effects of magnetic drift tangential to magnetic surfaces on neoclassical transport in non-axisymmetric plasmas [PDF]
, 2015 In evaluating neoclassical transport by radially local simulations, the magnetic drift tangential to a flux surface is usually ignored in order to keep the phase-space volume conservation.
S. Matsuoka +7 more
semanticscholar +1 more source
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.
openaire +3 more sources
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 electron and ion transport in toroidally rotating plasmas [PDF]
, 1997 Neoclassical transport processes of electrons and ions are investigated in detail for toroidally rotating axisymmetric plasmas with large flow velocities on the order of the ion thermal speed.
H. Sugama, W. Horton
core +2 more sources
Lagrangian formulation of neoclassical transport theory [PDF]
The Physics of Fluids, 1983 Neoclassical transport theory is developed in a Lagrangian formulation in contrast to the usual Eulerian development. The Lagrangian formulation is constructed from the three actions: magnetic moment, parallel invariant, and bounce-averaged poloidal flux.
Bernstein, I. B., Molvig, K.
openaire +1 more source
SOLPS-ITER modification for impurity transport modelling in the tokamak pedestal region
Nuclear Materials and EnergyKinetic corrections to SOLPS-ITER fluid equations are made to extend their applicability for description of the neoclassical part of impurity transport to collisionless regimes of the main ions.
V. Korzueva +3 more
doaj +1 more source
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
doaj +1 more source
Non-local Simulation of the Formation of Neoclassical Ambipolar Electric Field in Non-axisymmetric Configurations [PDF]
, 2005 Neoclassical transport simulation code (FORTEC-3D) applicable to non-axisymmetric configurations is developed. Adoption of a new hybrid simulation model, in which ion transport is solved by using the delta f Monte-Carlo method including the finite-orbit ...
H. Sugama +4 more
core +2 more sources
Compact formulas for guiding-center orbits in axisymmetric tokamak geometry
, 2010 Compact formulas for trapped-particle and passing-particle guiding-center orbits in axisymmetric tokamak geometry are given in terms of the Jacobi elliptic functions and complete elliptic integrals.
Brizard, Alain J.
core +1 more source
Validation of gyrokinetic modelling of light impurity transport including rotation in ASDEX Upgrade [PDF]
, 2013 Upgraded spectroscopic hardware and an improved impurity concentration calculation allow accurate determination of boron density in the ASDEX Upgrade tokamak.
Angioni, C. +11 more
core +3 more sources