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

Title: Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5074179· OSTI ID:1497984

Curvature-driven turbulence in a helical open-field-line plasma is investigated using electrostatic five-dimensional gyrokinetic continuum simulations in an all-bad-curvature helical-slab geometry. Parameters for a National Spherical Torus Experiment scrape-off-layer plasma are used in the model. Here, the formation and convective radial transport of plasma blobs is observed, and it is shown that the radial particle-transport levels are several times higher than diffusive Bohm-transport estimates. By reducing the strength of the poloidal magnetic field, the profile of the heat flux to the divertor plate is observed to broaden.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1497984
Report Number(s):
LLNL-JRNL-759681; 947057
Journal Information:
Physics of Plasmas, Vol. 26, Issue 1; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (89)

Progress in Kinetic Simulation of Edge Plasmas journal March 2008
Simulation of the scrape-off layer region of tokamak devices journal February 2015
Nonlinear Dynamics in the Tokamak Edge journal May 2010
Computation of electromagnetic turbulence and anomalous transport mechanisms in tokamak plasmas journal November 2003
Scaling of the tokamak near the scrape-off layer H-mode power width and implications for ITER journal August 2013
Heuristic drift-based model of the power scrape-off width in low-gas-puff H-mode tokamaks journal December 2011
Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER journal August 2017
A quarter-century of H-mode studies journal November 2007
Regime of Improved Confinement and High Beta in Neutral-Beam-Heated Divertor Discharges of the ASDEX Tokamak journal November 1982
Quantitative predictions of tokamak energy confinement from first‐principles simulations with kinetic effects journal June 1995
ITER predictions using the GYRO verified and experimentally validated trapped gyro-Landau fluid transport model journal June 2011
Pedestal and edge electrostatic turbulence characteristics from an XGC1 gyrokinetic simulation journal August 2017
Gyrokinetic full-torus simulations of ohmic tokamak plasmas in circular limiter configuration journal June 2016
Gyrokinetic continuum simulation of turbulence in a straight open-field-line plasma journal May 2017
Full- f version of GENE for turbulence in open-field-line systems journal June 2018
Continuum kinetic modeling of the tokamak plasma edge journal May 2016
Fully nonlinear δf gyrokinetics for scrape-off layer parallel transport journal October 2016
The Gyrokinetic Description of Microturbulence in Magnetized Plasmas journal January 2012
Compressed ion temperature gradient turbulence in diverted tokamak edge journal May 2009
The Plasma Boundary of Magnetic Fusion Devices book January 2000
High-speed imaging of edge turbulence in NSTX journal December 2003
Edge transport studies in the edge and scrape-off layer of the National Spherical Torus Experiment with Langmuir probes journal April 2014
Search for coherent structure within tokamak plasma turbulence journal January 1985
Structure of edge-plasma turbulence in the Caltech tokamak journal February 1985
Convective transport by intermittent blob-filaments: Comparison of theory and experiment journal June 2011
Edge turbulence measurements in toroidal fusion devices journal June 2007
Turbulent transport and the plasma edge journal June 2007
On scrape off layer plasma transport journal May 2001
Convective transport in the scrape-off-layer by nonthermalized spinning blobs journal September 2004
Effect of Drift Waves on Plasma Blob Dynamics journal May 2012
Blob dynamics in the TORPEX experiment: a multi-code validation journal January 2016
Numerical investigation of isolated filament motion in a realistic tokamak geometry journal September 2015
Blob dynamics in TORPEX poloidal null configurations journal October 2016
Formation of a density blob and its dynamics in the edge and the scrape-off layer of a tokamak plasma journal October 2005
Plasma turbulence in the scrape-off layer of tokamak devices journal January 2013
GRILLIX: a 3D turbulence code based on the flux-coordinate independent approach journal January 2018
Turbulent heat transport in TOKAM3X edge plasma simulations journal June 2018
The upgraded Large Plasma Device, a machine for studying frontier basic plasma physics journal February 2016
Electrostatic turbulence and transport in a simple magnetized plasma journal May 2006
Texas Helimak journal June 2008
High- and Low-Confinement Modes in Simple Magnetized Toroidal Plasmas journal June 2008
Three-dimensional fluid simulations of a simple magnetized toroidal plasma journal September 2009
Turbulence and bias-induced flows in simple magnetized toroidal plasmas journal May 2011
Fast scanning probe for the NSTX spherical tokamak journal December 2009
Measurements of ion energies in the tokamak plasma boundary journal August 2011
Ion temperature fluctuations in the ASDEX Upgrade scrape-off layer journal June 2012
The GBS code for tokamak scrape-off layer simulations journal June 2016
Global 3D two-fluid simulations of the tokamak edge region: Turbulence, transport, profile evolution, and spontaneous E×B rotation journal May 2017
Tokamak turbulence computations on closed and open magnetic flux surfaces journal September 2005
Comparison of scrape-off layer turbulence in Alcator C-Mod with three dimensional gyrofluid computations journal August 2009
Hermes: global plasma edge fluid turbulence simulations journal April 2017
Global 3D Braginskii simulations of the tokamak edge region of IWL discharges journal August 2017
Field‐aligned coordinates for nonlinear simulations of tokamak turbulence journal August 1995
Developments in the gyrofluid approach to Tokamak turbulence simulations journal August 1993
Global consistency for thin flux tube treatments of toroidal geometry journal June 1998
Foundations of nonlinear gyrokinetic theory journal April 2007
Gyrokinetic field theory journal February 2000
Study of ion turbulent transport and profile formations using global gyrokinetic full- f Vlasov simulation journal May 2009
Plasma Oscillations with Diffusion in Velocity Space journal December 1958
Momentum flux parasitic to free-energy transfer journal July 2017
Turbulence Phase Space in Simple Magnetized Toroidal Plasmas journal April 2010
A Suitable Boundary Condition for Bounded Plasma Simulation without Sheath Resolution journal January 1993
A gyrokinetic one-dimensional scrape-off layer model of an edge-localized mode heat pulse journal February 2015
Improved boundary condition for full-f gyrokinetic simulations of circular-limited tokamak plasmas in ELMFIRE journal July 2018
Edge and SOL turbulence and blob variations over a large database in NSTX journal September 2015
Blob structure and motion in the edge and SOL of NSTX journal January 2016
Plasma–wall transition in an oblique magnetic field journal January 1982
A High-Order Discontinuous Galerkin Method for 2D Incompressible Flows journal May 2000
Strong Stability-Preserving High-Order Time Discretization Methods journal January 2001
Analysis of a multi-machine database on divertor heat fluxes journal May 2012
Recent theoretical progress in understanding coherent structures in edge and SOL turbulence journal October 2008
The remarkable similarity between the scaling of kurtosis with squared skewness for TORPEX density fluctuations and sea-surface temperature fluctuations journal March 2008
Plasma boundary phenomena in tokamaks journal July 1990
Drift wave versus interchange turbulence in tokamak geometry: Linear versus nonlinear mode structure journal June 2005
Turbulent regimes in the tokamak scrape-off layer journal September 2013
Results from a double Li-beam technique for measurement of both radial and poloidal components of electron density fluctuations using two thermal beams journal February 2005
Experimental Evidence of Intermittent Convection in the Edge of Magnetic Confinement Devices journal July 2001
Intermittent turbulence and turbulent structures in a linear magnetized plasma journal January 2006
On neutral wind and blob motion in linear devices journal July 2003
A tracking method for gas flow into vacuum based on the vacuum Riemann problem journal June 1994
The Plasma Boundary of Magnetic Fusion Devices book January 2000
The Plasma Boundary of Magnetic Fusion Devices journal January 2001
Experimental Evidence of Intermittent Convection in the Edge of Magnetic Confinement Devices text January 2001
Hermes: Global plasma edge fluid turbulence simulations text January 2016
Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER text January 2017
Gyrokinetic continuum simulation of turbulence in a straight open-field-line plasma text January 2017
Intermittent turbulence and turbulent structures in a linear magnetized plasma text January 2005
Gaston Bachelard: Philosopher of Science and Imagination by Roch C. Smith journal January 2017
Restructuring of the corporate sector of national economy: content and mechanism of realization journal August 2016

Cited By (3)

Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak journal April 2019
Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak text January 2018
Electromagnetic full-$f$ gyrokinetics in the tokamak edge with discontinuous Galerkin methods text January 2019

Similar Records

Full- f version of GENE for turbulence in open-field-line systems
Journal Article · Thu May 31 00:00:00 EDT 2018 · Physics of Plasmas · OSTI ID:1497984

Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak
Journal Article · Thu Apr 11 00:00:00 EDT 2019 · Physics of Plasmas · OSTI ID:1497984

Gyrokinetic continuum simulation of turbulence in a straight open-field-line plasma
Journal Article · Mon May 29 00:00:00 EDT 2017 · Journal of Plasma Physics · OSTI ID:1497984