Neoclassical nature of the radial electric field at the low-to-high confinement transition

T.P. Kiviniemi; S.K. Sipilä; V.A. Rozhansky; S.P. Voskoboynikov; E.G. Kaveeva; J.A. Heikkinen; D.P. Coster; R.  Schneider; X. Bonnin

doi:10.1063/1.1570827

Neoclassical nature of the radial electric field at the low-to-high confinement transition

T.P. Kiviniemi (Corresponding Author), S.K. Sipilä, V.A. Rozhansky, S.P. Voskoboynikov, E.G. Kaveeva, J.A. Heikkinen, D.P. Coster, R. Schneider, X. Bonnin

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

12 Citations (Scopus)

Abstract

The radial electric field E_rat the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional (three-dimensional in configuration space and 2D in velocity space) Monte Carlo particle following code. At low to high confinement transition conditions, the E^→r×B^→ shearing rate is found to be high enough for turbulence suppression even though the field is essentially neoclassical. Here, B^→ is the magnetic field. No bifurcation of E_r is found.

Original language	English
Pages (from-to)	2604-2607
Journal	Physics of Plasmas
Volume	10
Issue number	6
DOIs	https://doi.org/10.1063/1.1570827
Publication status	Published - 2003
MoE publication type	A1 Journal article-refereed

Keywords

plasma
plasma toroidal confinement
plasma boundary layers
Monte Carlo method
Monte Carlo
plasma transport processes
plasma turbulence
electric fields

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1063/1.1570827

Cite this

@article{9c8d31482e494e3a9b9d480e05c53274,

title = "Neoclassical nature of the radial electric field at the low-to-high confinement transition",

abstract = "The radial electric field Er at the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional (three-dimensional in configuration space and 2D in velocity space) Monte Carlo particle following code. At low to high confinement transition conditions, the E→r×B→ shearing rate is found to be high enough for turbulence suppression even though the field is essentially neoclassical. Here, B→ is the magnetic field. No bifurcation of Er is found.",

keywords = "plasma, plasma toroidal confinement, plasma boundary layers, Monte Carlo method, Monte Carlo, plasma transport processes, plasma turbulence, electric fields",

author = "T.P. Kiviniemi and S.K. Sipil{\"a} and V.A. Rozhansky and S.P. Voskoboynikov and E.G. Kaveeva and J.A. Heikkinen and D.P. Coster and R. Schneider and X. Bonnin",

year = "2003",

doi = "10.1063/1.1570827",

language = "English",

volume = "10",

pages = "2604--2607",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics (AIP)",

number = "6",

}

TY - JOUR

T1 - Neoclassical nature of the radial electric field at the low-to-high confinement transition

AU - Kiviniemi, T.P.

AU - Sipilä, S.K.

AU - Rozhansky, V.A.

AU - Voskoboynikov, S.P.

AU - Kaveeva, E.G.

AU - Heikkinen, J.A.

AU - Coster, D.P.

AU - Schneider, R.

AU - Bonnin, X.

PY - 2003

Y1 - 2003

N2 - The radial electric field Er at the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional (three-dimensional in configuration space and 2D in velocity space) Monte Carlo particle following code. At low to high confinement transition conditions, the E→r×B→ shearing rate is found to be high enough for turbulence suppression even though the field is essentially neoclassical. Here, B→ is the magnetic field. No bifurcation of Er is found.

AB - The radial electric field Er at the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional (three-dimensional in configuration space and 2D in velocity space) Monte Carlo particle following code. At low to high confinement transition conditions, the E→r×B→ shearing rate is found to be high enough for turbulence suppression even though the field is essentially neoclassical. Here, B→ is the magnetic field. No bifurcation of Er is found.

KW - plasma

KW - plasma toroidal confinement

KW - plasma boundary layers

KW - Monte Carlo method

KW - Monte Carlo

KW - plasma transport processes

KW - plasma turbulence

KW - electric fields

U2 - 10.1063/1.1570827

DO - 10.1063/1.1570827

M3 - Article

SN - 1070-664X

VL - 10

SP - 2604

EP - 2607

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 6

ER -

Neoclassical nature of the radial electric field at the low-to-high confinement transition

Abstract

Keywords

UN SDGs

Access to Document

Fingerprint

Cite this