Mesoscopic transport events and the breakdown of Fick's law for turbulent fluxes
TS Hahm, PH Diamond - Journal of the Korean Physical Society, 2018 - Springer
This paper presents a pedagogical review of the physics of mesoscopic transport events and
their role in the breakdown of Fick's Law for turbulent transport in magnetically confined …
their role in the breakdown of Fick's Law for turbulent transport in magnetically confined …
On how fast ions enhance the regulation of drift wave turbulence by zonal flows
This paper presents a mechanism for enhanced regulation of drift wave turbulence by zonal
flows in the presence of a fast ion population. It demonstrates that dilution effects due to the …
flows in the presence of a fast ion population. It demonstrates that dilution effects due to the …
Characteristics of trapped electron transport, zonal flow staircase, turbulence fluctuation spectra in elongated tokamak plasmas
The effects of plasma elongation on trapped electron mode (TEM) driven turbulence and
transport are investigated with detailed analyses of fluctuation, zonal flow and zonal …
transport are investigated with detailed analyses of fluctuation, zonal flow and zonal …
Staircase formation by resonant and non-resonant transport of potential vorticity
Q Yan, PH Diamond - Nuclear Fusion, 2022 - iopscience.iop.org
Abstract The E× B staircase is a quasi-periodic pattern of pressure profile corrugations. In
this work, we present a new mechanism for E× B staircase formation that involves resonant …
this work, we present a new mechanism for E× B staircase formation that involves resonant …
Wave trapping and E× B staircases
A model of E× B staircases is proposed based on a wave kinetic equation coupled to a
poloidal momentum equation. A staircase pattern is idealized as a periodic radial structure …
poloidal momentum equation. A staircase pattern is idealized as a periodic radial structure …
Self-consistent model of the plasma staircase and nonlinear Schrödinger equation with subquadratic power nonlinearity
AV Milovanov, JJ Rasmussen, G Dif-Pradalier - Physical Review E, 2021 - APS
A new basis has been found for the theory of self-organization of transport avalanches and
jet zonal flows in L-mode tokamak plasma, the so-called “plasma staircase”[Dif-Pradalier …
jet zonal flows in L-mode tokamak plasma, the so-called “plasma staircase”[Dif-Pradalier …
Scale selection and feedback loops for patterns in drift wave-zonal flow turbulence
W Guo, PH Diamond, DW Hughes… - Plasma Physics and …, 2019 - iopscience.iop.org
The scale selection and feedback loops for the formation and sustainment of a mesoscopic
staircase profile structure are investigated for drift wave-zonal flow turbulence. A mean field …
staircase profile structure are investigated for drift wave-zonal flow turbulence. A mean field …
Effects of light impurities on zonal flow activities and turbulent thermal transport
Nonlinear effects of light impurities on the zonal flow activities and electrostatic ITG (ion
temperature gradient) mode are investigated with gyrokinetic simulations. For the …
temperature gradient) mode are investigated with gyrokinetic simulations. For the …
Limit cycle oscillations, response time, and the time-dependent solution to the Lotka–Volterra predator–prey model
In this work, the time-dependent solution for the Lotka–Volterra predator–prey model is
derived with the help of the Lambert W function. This allows an exact analytical expression …
derived with the help of the Lambert W function. This allows an exact analytical expression …
Development and long-term evolution of density staircases in stirred stratified turbulence
We formulate and analyze a model describing the development and evolution of density
staircases in stratified turbulence, using it to investigate the long-term evolution and merger …
staircases in stratified turbulence, using it to investigate the long-term evolution and merger …