skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Finite Larmor radius effects at the high confinement mode pedestal and the related force-free steady state

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5089135· OSTI ID:1506115

In this letter, we will first relate our previous calculations on the radial electric field at the high confinement H-mode pedestal to the actual magnetic fusion experimental measurements. We will then discuss the new pressure balance due to the E × B current, which is induced by the resulting radial electric field, and its impact on the gyrokinetic MHD equations as well as their conservation properties in the force-free steady state. Here the recent controversy on the H-mode physics will also be addressed.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1506115
Alternate ID(s):
OSTI ID: 1504301
Journal Information:
Physics of Plasmas, Vol. 26, Issue 4; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (30)

Equilibrium potential well due to finite Larmor radius effects at the tokamak edge journal August 2017
Nonlinear, three-dimensional magnetohydrodynamics of noncircular tokamaks journal January 1976
Dynamo and anomalous transport in the reversed field pinch journal January 1999
A fast low-to-high confinement mode bifurcation dynamics in the boundary-plasma gyrokinetic code XGC1 journal May 2018
“Maximum” entropy production in self-organized plasma boundary layer: A thermodynamic discussion about turbulent heat transport journal March 2008
Development of an Edge Transport Barrier at the H-Mode Transition of ASDEX journal October 1984
Shear-Alfvén waves in gyrokinetic plasmas journal October 2001
Fast Low-to-High Confinement Mode Bifurcation Dynamics in a Tokamak Edge Plasma Gyrokinetic Simulation journal April 2017
Hydrogen isotope effects on ITG scale length, pedestal and confinement in JT-60 H-mode plasmas journal July 2013
Alfvén waves in gyrokinetic plasmas journal August 2003
Gyrokinetic approach in particle simulation journal January 1983
Nonlinear polarization and dissipative correspondence between low-frequency fluid and gyrofluid equations journal October 2007
A quarter-century of H-mode studies journal November 2007
Dynamics of high β tokamaks journal January 1977
The H-mode density limit in the full tungsten ASDEX Upgrade tokamak journal November 2014
Response to “Comment on ‘Equilibrium potential well due to finite Larmor radius effects at the tokamak edge’” [Phys. Plasmas 25, 054701 (2018)] journal May 2018
Magnetohydrodynamics for collisionless plasmas from the gyrokinetic perspective journal July 2016
Experimental studies of the physical mechanism determining the radial electric field and its radial structure in a toroidal plasma journal August 1998
Gyrokinetic magnetohydrodynamics and the associated equilibria journal December 2017
A collisionless self-organizing model for the high-confinement (H-mode) boundary layer journal February 2000
Gyrokinetic perpendicular dynamics journal May 1999
Energy exchange dynamics across L–H transitions in NSTX journal May 2017
A Theorem on Force-Free Magnetic Fields journal June 1958
Gyrokinetic simulation of isotope effects in tokamak plasmas journal January 1997
Self-Regulating Shear Flow Turbulence: A Paradigm for the L to H Transition journal April 1994
On higher order corrections to gyrokinetic Vlasov–Poisson equations in the long wavelength limit journal April 2009
Beltrami fields in plasmas: High-confinement mode boundary layers and high beta equilibria journal May 2001
Relaxation of Toroidal Plasma and Generation of Reverse Magnetic Fields journal November 1974
Integrated fusion simulation with self-consistent core-pedestal coupling journal April 2016
Nonlinear polarisation and dissipative correspondence between low frequency fluid and gyrofluid equations text January 2007