Nonlinear equilibria and transport processes in burning plasmas
In this work, we put forward a general phase space transport theory in axisymmetric tokamak
plasmas based upon the concept of zonal state (ZS). Within this theoretical framework, the …
plasmas based upon the concept of zonal state (ZS). Within this theoretical framework, the …
Nonlinear drift-wave and energetic particle long-time behaviour in stellarators: solution of the kinetic problem
We propose a theoretical scheme for the study of the nonlinear interaction of drift-wave-like
turbulence and energetic particles in stellarators. The approach is based on gyrokinetics …
turbulence and energetic particles in stellarators. The approach is based on gyrokinetics …
Energetic particles transport in constants of motion space due to collisions in tokamak plasmas
The spatio-temporal evolution of the energetic particles in the transport time scale in
tokamak plasmas is a key issue of the plasmas confinement, especially in burning plasmas …
tokamak plasmas is a key issue of the plasmas confinement, especially in burning plasmas …
[HTML][HTML] Verification of electromagnetic simulation capabilities in global gyrokinetic particle-in-cell code GTS
EA Startsev, W Wang, MG Yoo, J Chen, S Ethier - Physics of Plasmas, 2024 - pubs.aip.org
Recently, the numerical scheme presented by Mishchenko et al.[Phys. Plasmas 21, 052113
(2014); 21, 092110 (2014)] enabled explicit gyrokinetic simulations of low-frequency …
(2014); 21, 092110 (2014)] enabled explicit gyrokinetic simulations of low-frequency …
[HTML][HTML] Gyrokinetic simulations of neoclassical electron transport and bootstrap current generation in tokamak plasmas in the TRIMEG code
For magnetic confinement fusion in tokamak plasmas, some of the limitations to the particle
and energy confinement times are caused by turbulence and collisions between particles in …
and energy confinement times are caused by turbulence and collisions between particles in …
Gyrokinetic Electromagnetic Particle Simulations in Triangular Meshes with C1 Finite Elements
The triangular mesh-based gyrokinetic scheme enables comprehensive axis-to-edge
studies across the entire plasma volume. Our approach employs triangular finite elements …
studies across the entire plasma volume. Our approach employs triangular finite elements …
High-order stochastic integration schemes for the Rosenbluth-Trubnikov collision operator in particle simulations
In this study, we consider a numerical implementation of the nonlinear Rosenbluth-
Trubnikov collision operator for particle simulations in plasma physics in the framework of …
Trubnikov collision operator for particle simulations in plasma physics in the framework of …
[PDF][PDF] Theoretical, Numerical, and Experimental Studies of Advanced Transport Models for Energetic Particles
Energetic particle (EP) transport exhibits multiple spatio-temporal scales and nonlinear
behaviors. Electromagnetic kinetic effects, EP anisotropy, symmetry breaking and nonlinear …
behaviors. Electromagnetic kinetic effects, EP anisotropy, symmetry breaking and nonlinear …
[PDF][PDF] Studies of Collision Operators and Applications in Tokamak Plasmas
L Rekhviashvili - 2023 - pure.mpg.de
For magnetic confinement fusion in Tokamak plasma, some of the limitations to particle and
energy confinement time are caused by turbulence and collisions between particles, which …
energy confinement time are caused by turbulence and collisions between particles, which …
[PDF][PDF] Piecewise Field-Aligned Finite Element Method for Multi-Mode Nonlinear Particle Simulations
Nonlinear kinetic effects play a crucial role in determining plasma confinement and require
efficient and accurate multi-mode nonlinear gyrokinetic simulations. The piecewise field …
efficient and accurate multi-mode nonlinear gyrokinetic simulations. The piecewise field …