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Title: Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields

Abstract

Eulerian kinetic calculations are presented here for the axisymmetric cross-separatrix plasma transport at the edge of a tokamak. The simulations are performed with a high-order finite volume code COGENT, which solves the long-wavelength limit of the full-f ion gyrokinetic equation including the non-linear Fokker–Plank collision model. Self-consistent 2D electrostatic potential variations are obtained from the quasi-neutrality (∇·j = 0) equation coupled to an isothermal fluid electron response. Finally, illustrative solutions presented for parameters characteristic of the DIII-D tokamak show qualitative agreement with experimental data.

Authors:
 [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1476181
Alternate Identifier(s):
OSTI ID: 1423492
Report Number(s):
LLNL-JRNL-738690
Journal ID: ISSN 0863-1042; 892180
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Contributions to Plasma Physics
Additional Journal Information:
Journal Volume: 58; Journal Issue: 6-8; Journal ID: ISSN 0863-1042
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; finite-volume methods; gyrokinetics; tokamak edge

Citation Formats

Dorf, Mikhail, and Dorr, Milo. Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields. United States: N. p., 2018. Web. doi:10.1002/ctpp.201700137.
Dorf, Mikhail, & Dorr, Milo. Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields. United States. doi:10.1002/ctpp.201700137.
Dorf, Mikhail, and Dorr, Milo. Fri . "Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields". United States. doi:10.1002/ctpp.201700137. https://www.osti.gov/servlets/purl/1476181.
@article{osti_1476181,
title = {Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields},
author = {Dorf, Mikhail and Dorr, Milo},
abstractNote = {Eulerian kinetic calculations are presented here for the axisymmetric cross-separatrix plasma transport at the edge of a tokamak. The simulations are performed with a high-order finite volume code COGENT, which solves the long-wavelength limit of the full-f ion gyrokinetic equation including the non-linear Fokker–Plank collision model. Self-consistent 2D electrostatic potential variations are obtained from the quasi-neutrality (∇·j = 0) equation coupled to an isothermal fluid electron response. Finally, illustrative solutions presented for parameters characteristic of the DIII-D tokamak show qualitative agreement with experimental data.},
doi = {10.1002/ctpp.201700137},
journal = {Contributions to Plasma Physics},
number = 6-8,
volume = 58,
place = {United States},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

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Cited by: 2 works
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Figures / Tables:

Table 1 Table 1: Characteristic near-separatrix parameters of a DIII-D H-mode.

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Works referenced in this record:

Neoclassical physics in full distribution function gyrokinetics
journal, June 2011

  • Dif-Pradalier, G.; Diamond, P. H.; Grandgirard, V.
  • Physics of Plasmas, Vol. 18, Issue 6
  • DOI: 10.1063/1.3592652

Neoclassical equilibria as starting point for global gyrokinetic microturbulence simulations
journal, December 2010

  • Vernay, T.; Brunner, S.; Villard, L.
  • Physics of Plasmas, Vol. 17, Issue 12
  • DOI: 10.1063/1.3519513

An Eulerian gyrokinetic-Maxwell solver
journal, April 2003


Reduced Electron Models for Edge Simulation
journal, June 2012

  • Cohen, R. H.; Dorf, M.; Dorr, M.
  • Contributions to Plasma Physics, Vol. 52, Issue 5-6
  • DOI: 10.1002/ctpp.201210044

Progress with the COGENT Edge Kinetic Code: Collision Operator Options
journal, June 2012

  • Dorf, M. A.; Cohen, R. H.; Compton, J. C.
  • Contributions to Plasma Physics, Vol. 52, Issue 5-6
  • DOI: 10.1002/ctpp.201210042

Understanding transport barriers through modelling
journal, April 2004


Numerical modelling of geodesic acoustic mode relaxation in a tokamak edge
journal, May 2013


Electron temperature gradient driven turbulence
journal, May 2000

  • Jenko, F.; Dorland, W.; Kotschenreuther, M.
  • Physics of Plasmas, Vol. 7, Issue 5
  • DOI: 10.1063/1.874014

Two-dimensional electric fields and drifts near the magnetic separatrix in divertor tokamaks
journal, May 1999

  • Rognlien, T. D.; Ryutov, D. D.; Mattor, N.
  • Physics of Plasmas, Vol. 6, Issue 5
  • DOI: 10.1063/1.873488

Simulation of tokamak edge plasma including self-consistent electric fields
journal, April 2001


Limitations of gyrokinetics on transport time scales
journal, April 2008


Radially global δ f computation of neoclassical phenomena in a tokamak pedestal
journal, March 2014


High-order finite-volume methods for hyperbolic conservation laws on mapped multiblock grids
journal, May 2015

  • McCorquodale, P.; Dorr, M. R.; Hittinger, J. A. F.
  • Journal of Computational Physics, Vol. 288
  • DOI: 10.1016/j.jcp.2015.01.006

New B2SOLPS5.2 transport code for H-mode regimes in tokamaks
journal, January 2009


Potentials and currents in the edge tokamak plasma: simplified approach and comparison with two-dimensional modelling
journal, July 2003


Poloidal asymmetries in edge transport barriersa)
journal, May 2015

  • Churchill, R. M.; Theiler, C.; Lipschultz, B.
  • Physics of Plasmas, Vol. 22, Issue 5
  • DOI: 10.1063/1.4918353

Gyrokinetic particle simulation model
journal, September 1987


Kinetic effects in tokamak scrape-off layer plasmas
journal, May 1997

  • Batishchev, O. V.; Krasheninnikov, S. I.; Catto, Peter J.
  • Physics of Plasmas, Vol. 4, Issue 5
  • DOI: 10.1063/1.872280

Intrinsic toroidal velocity near the edge of DIII-D H-mode plasmas
journal, July 2009


Kinetic calculation of neoclassical transport including self-consistent electron and impurity dynamics
journal, July 2008


Evidence for the neoclassical nature of the radial electric field in the edge transport barrier of ASDEX Upgrade
journal, December 2013


Simulation of neoclassical transport with the continuum gyrokinetic code COGENT
journal, January 2013

  • Dorf, M. A.; Cohen, R. H.; Dorr, M.
  • Physics of Plasmas, Vol. 20, Issue 1
  • DOI: 10.1063/1.4776712

Continuum kinetic modeling of the tokamak plasma edge
journal, May 2016

  • Dorf, M. A.; Dorr, M. R.; Hittinger, J. A.
  • Physics of Plasmas, Vol. 23, Issue 5
  • DOI: 10.1063/1.4943106

High-order, finite-volume methods in mapped coordinates
journal, April 2011

  • Colella, P.; Dorr, M. R.; Hittinger, J. A. F.
  • Journal of Computational Physics, Vol. 230, Issue 8
  • DOI: 10.1016/j.jcp.2010.12.044

Kinetic simulations of electron heat flux in the scrape-off layer
journal, August 2017


Transport-Driven Toroidal Rotation in the Tokamak Edge
journal, February 2012


Experimental evidence of edge intrinsic momentum source driven by kinetic ion loss and edge radial electric fields in tokamaks
journal, September 2016

  • Boedo, J. A.; deGrassie, J. S.; Grierson, B.
  • Physics of Plasmas, Vol. 23, Issue 9
  • DOI: 10.1063/1.4962683

On the applicability of the standard approaches for evaluating a neoclassical radial electric field in a tokamak edge region
journal, August 2013

  • Dorf, M. A.; Cohen, R. H.; Simakov, A. N.
  • Physics of Plasmas, Vol. 20, Issue 8
  • DOI: 10.1063/1.4818777

Kinetic simulations of scrape-off layer physics in the DIII-D tokamak
journal, August 2017


    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.