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 …

Self-organized criticality and the dynamics of near-marginal turbulent transport in magnetically confined fusion plasmas

R Sanchez, DE Newman - Plasma Physics and Controlled Fusion, 2015 - iopscience.iop.org
The high plasma temperatures expected at reactor conditions in magnetic confinement
fusion toroidal devices suggest that near-marginal operation could be a reality in future …

Nonlinear gyrokinetic predictions of SPARC burning plasma profiles enabled by surrogate modeling

P Rodriguez-Fernandez, NT Howard, J Candy - Nuclear Fusion, 2022 - iopscience.iop.org
Multi-channel, nonlinear predictions of core temperature and density profiles are performed
for the SPARC tokamak (Creely et al 2020 J. Plasma Phys. 86 865860502) accounting for …

ORB5: a global electromagnetic gyrokinetic code using the PIC approach in toroidal geometry

E Lanti, N Ohana, N Tronko… - Computer Physics …, 2020 - Elsevier
This paper presents the current state of the global gyrokinetic code Orb 5 as an update of the
previous reference (Jolliet et al., 2007). The Orb 5 code solves the electromagnetic Vlasov …

A 5D gyrokinetic full-f global semi-Lagrangian code for flux-driven ion turbulence simulations

V Grandgirard, J Abiteboul, J Bigot… - Computer physics …, 2016 - Elsevier
This paper addresses non-linear gyrokinetic simulations of ion temperature gradient (ITG)
turbulence in tokamak plasmas. The electrostatic GYSELA code is one of the few …

Finding the Elusive Staircase in Magnetized Plasmas

G Dif-Pradalier, G Hornung, P Ghendrih, Y Sarazin… - Physical review …, 2015 - APS
Turbulence in hot magnetized plasmas is shown to generate permeable localized transport
barriers that globally organize into the so-called" E x B staircase"[G. Dif-Pradalier et al …

Impact of energetic-particle-driven geodesic acoustic modes on turbulence

D Zarzoso, Y Sarazin, X Garbet, R Dumont… - Physical Review Letters, 2013 - APS
The impact on turbulent transport of geodesic acoustic modes excited by energetic particles
is evidenced for the first time in flux-driven 5D gyrokinetic simulations using the Gysela code …

Intrinsic Toroidal Rotation Driven by Turbulent and Neoclassical Processes in Tokamak Plasmas from Global Gyrokinetic Simulations

H Zhu, T Stoltzfus-Dueck, R Hager, S Ku, CS Chang - Physical Review Letters, 2024 - APS
Gyrokinetic tokamak plasmas can exhibit intrinsic toroidal rotation driven by the residual
stress. While most studies have attributed the residual stress to the parallel-momentum flux …

Experimental observation of the non-diffusive avalanche-like electron heat transport events and their dynamical interaction with the shear flow structure

MJ Choi, H Jhang, JM Kwon, J Chung, M Woo… - Nuclear …, 2019 - iopscience.iop.org
We present experimental observations suggesting that non-diffusive avalanche-like
transport events are a prevalent and universal process in the electron heat transport of …

Experimental evaluation of avalanche type of electron heat transport in magnetic confinement plasmas

F Kin, K Itoh, T Bando, K Shinohara, N Oyama… - Nuclear …, 2022 - iopscience.iop.org
Turbulent transport is undoubtedly important in magnetic confinement plasmas. It has been
reported that a lot of transport dynamics are not satisfying the local diffusive models. Here …