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

Title: Turbulent transport of toroidal angular momentum in fusion plasmas

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.3677886· OSTI ID:1564856
 [1];  [2];  [1]
  1. Univ. of California, Irvine, CA (United States)
  2. Univ. of California, Irvine, CA (United States) ; Peking Univ., Beijing (China)

Global nonlinear gyrokinetic simulations of ion temperature gradient (ITG) and collisionless trapped electron mode (CTEM) turbulence find significant spinning up of a plasma in the directions opposite for CTEM and ITG turbulence. The outward momentum convection by the particle flux could be strong enough to overcome the inward momentum pinch and reverse the radial direction of the convective momentum flux. Momentum pinch velocity shows no explicit dependence on background temperature, while it is significantly affected by steepening the background density. Convective momentum fluxes are generally smaller in the CTEM turbulence than the ITG turbulence, while the intrinsic Prandtl number is similar or slightly larger in the CTEM turbulence.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1564856
Journal Information:
Physics of Plasmas, Vol. 19, Issue 1; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (21)

Stabilization of ideal modes by resistive walls in tokamaks with plasma rotation and its effect on the beta limit journal May 1995
Transport of Energetic Particles by Microturbulence in Magnetized Plasmas journal August 2008
Evidence for a Toroidal-Momentum-Transport Nondiffusive Term from the JFT-2M Tokamak journal March 1995
Nondiffusive Toroidal-Momentum-Transport in the JFT-2M Tokamak Plasmas journal December 1998
Nonlinear gyrokinetic theory of toroidal momentum pinch journal July 2007
Evidence of Inward Toroidal Momentum Convection in the JET Tokamak journal February 2009
Intrinsic rotation and electric field shear journal April 2007
Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations journal September 1998
Wave-Particle Decorrelation and Transport of Anisotropic Turbulence in Collisionless Plasmas journal December 2007
Toroidal Momentum Pinch Velocity due to the Coriolis Drift Effect on Small Scale Instabilities in a Toroidal Plasma journal June 2007
Experimental determination of non-diffusive toroidal momentum flux in JT-60U journal March 1994
Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry journal December 2009
Effects of electron dynamics in toroidal momentum transport driven by ion temperature gradient turbulence journal January 2010
Effects of E×B velocity shear and magnetic shear on turbulence and transport in magnetic confinement devices journal May 1997
Size Scaling of Turbulent Transport in Magnetically Confined Plasmas journal April 2002
Gyrokinetic approach in particle simulation journal January 1983
Statistical analysis of fluctuations and noise-driven transport in particle-in-cell simulations of plasma turbulence journal March 2007
Momentum-Transport Studies in High E × B Shear Plasmas in the National Spherical Torus Experiment journal August 2008
Gyrokinetic particle simulations of toroidal momentum transport journal September 2008
Momentum transport and plasma rotation profile in toroidal direction in JT-60U L-mode plasmas journal July 2007
Turbulent Transport of Trapped-Electron Modes in Collisionless Plasmas journal August 2009

Cited By (1)


Similar Records

Turbulent transport of toroidal angular momentum in fusion plasmas
Journal Article · Sun Jan 15 00:00:00 EST 2012 · Physics of Plasmas · OSTI ID:1564856

Nonlinear gyrokinetic theory of toroidal momentum pinch
Journal Article · Sun Jul 15 00:00:00 EDT 2007 · Physics of Plasmas · OSTI ID:1564856

Transport of Parallel Momentum by Toroidal Ion Temperature Gradient Instability near Marginality
Technical Report · Tue Oct 20 00:00:00 EDT 2009 · OSTI ID:1564856