L-H transport barrier formation: Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

Jukka Heikkinen; Timo Kiviniemi; A. Peeters

doi:10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

L-H transport barrier formation: Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

Jukka Heikkinen^*
, Timo Kiviniemi
, A. Peeters

^*Corresponding author for this work

VTT Technical Research Centre of Finland

Helsinki University of Technology
Max-Planck-Institut für Plasmaphysik (IPP)

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

5 Citations (Scopus)

Abstract

Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field E_r in contrast with earlier orbit loss models, but bifurcation and a solitary E_r generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

Original language	English
Pages (from-to)	431-436
Journal	Contributions to Plasma Physics
Volume	40
Issue number	3-4
DOIs	https://doi.org/10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9
Publication status	Published - 2000
MoE publication type	A1 Journal article-refereed

UN SDGs

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

SDG 7 Affordable and Clean Energy

Access to Document

10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

Cite this

@article{f47113352e5a4990b70c066fcaf7df0c,

title = "L-H transport barrier formation: Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks",

abstract = "Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition. ",

author = "Jukka Heikkinen and Timo Kiviniemi and A. Peeters",

year = "2000",

doi = "10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9",

language = "English",

volume = "40",

pages = "431--436",

journal = "Contributions to Plasma Physics",

issn = "0863-1042",

publisher = "Wiley",

number = "3-4",

}

TY - JOUR

T1 - L-H transport barrier formation

T2 - Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

AU - Heikkinen, Jukka

AU - Kiviniemi, Timo

AU - Peeters, A.

PY - 2000

Y1 - 2000

N2 - Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

AB - Monte Carlo ion simulation and semi‐analytical calculation of the neoclassical radial current balance in a tokamak plasma edge show no spontaneous bifurcation of radial electric field Er in contrast with earlier orbit loss models, but bifurcation and a solitary Er generation by electrode polarization are seen. Strong orbit loss shear is found for H‐mode threshold conditions in ASDEX Upgrade, indicating that orbit loss is the major source of the shear for L‐H transition.

U2 - 10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

DO - 10.1002/1521-3986(200006)40:3/4<431::AID-CTPP431>3.0.CO;2-9

M3 - Article

SN - 0863-1042

VL - 40

SP - 431

EP - 436

JO - Contributions to Plasma Physics

JF - Contributions to Plasma Physics

IS - 3-4

ER -

L-H transport barrier formation: Monte Carlo simulation of the sheared E × B flow dynamics in tokamaks

Abstract

UN SDGs

Access to Document

Fingerprint

Cite this