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

Dorf, Mikhail; Dorr, Milo

doi:10.1002/ctpp.201700137

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:

Dorf, Mikhail ^[1]; Dorr, Milo ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Publication Date:: 2018-03-02

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; DE‐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.

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                    Dorf, Mikhail, & Dorr, Milo. Continuum kinetic modelling of cross-separatrix plasma transport in a tokamak edge including self-consistent electric fields.  United States.  https://doi.org/10.1002/ctpp.201700137

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                    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.  https://doi.org/10.1002/ctpp.201700137.  https://www.osti.gov/servlets/purl/1476181.

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@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}

}

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Journal Article:

Free Publicly Available Full Text

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https://doi.org/10.1002/ctpp.201700137

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Cited by: 2 works

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Figures / Tables:

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

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Works referenced in this record:

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Continuum kinetic modeling of the tokamak plasma edge
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Works referencing / citing this record:

Drift-ideal magnetohydrodynamic simulations of m = 0 modes in Z-pinch plasmas
journal, July 2019

Angus, J. R.; Dorf, M.; Geyko, V. I.
Physics of Plasmas, Vol. 26, Issue 7
DOI: 10.1063/1.5093625

Customizable two-species kinetic equilibria for nonuniform low-beta plasmas
journal, April 2019

Vogman, G. V.; Hammer, J. H.; Farmer, W. A.
Physics of Plasmas, Vol. 26, Issue 4
DOI: 10.1063/1.5089465

Figures / Tables found in this record:

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

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

Abstract

Citation Formats

Figures / Tables:

Neoclassical physics in full distribution function gyrokinetics journal, June 2011

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

An Eulerian gyrokinetic-Maxwell solver journal, April 2003

Reduced Electron Models for Edge Simulation journal, June 2012

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

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

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

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

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

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes? journal, May 2007

Gyrokinetic particle simulation model journal, September 1987

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

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

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

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

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

Progress with the COGENT Edge Kinetic Code: Implementing the Fokker-Planck Collision Operator: Progress with the COGENT Edge Kinetic Code: Implementing the Fokker-Planck Collision Operator journal, June 2014

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

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

Implicit-Explicit Time Integration for the Vlasov-Fokker-Planck Equations conference, June 2017

Drift-ideal magnetohydrodynamic simulations of m = 0 modes in Z-pinch plasmas journal, July 2019

Customizable two-species kinetic equilibria for nonuniform low-beta plasmas journal, April 2019

Neoclassical physics in full distribution function gyrokinetics
journal, June 2011

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

An Eulerian gyrokinetic-Maxwell solver
journal, April 2003

Reduced Electron Models for Edge Simulation
journal, June 2012

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

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

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

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

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

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes?
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Gyrokinetic particle simulation model
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Kinetic effects in tokamak scrape-off layer plasmas
journal, May 1997

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

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journal, July 2008

Evidence for the neoclassical nature of the radial electric field in the edge transport barrier of ASDEX Upgrade
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Simulation of neoclassical transport with the continuum gyrokinetic code COGENT
journal, January 2013

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

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

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

Transport-Driven Toroidal Rotation in the Tokamak Edge
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Experimental evidence of edge intrinsic momentum source driven by kinetic ion loss and edge radial electric fields in tokamaks
journal, September 2016

Progress with the COGENT Edge Kinetic Code: Implementing the Fokker-Planck Collision Operator: Progress with the COGENT Edge Kinetic Code: Implementing the Fokker-Planck Collision Operator
journal, June 2014

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

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journal, August 2017

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