Multi-Dimensional Structure of the Electric Field in Tokamak H-Mode

Search this Article

Author(s)

Abstract

In tokamak H-mode, a large poloidal flow exists in an edge transport barrier, and the electrostatic potential and density profiles can be steep both in the radial and poloidal direction. Two-dimensional structures of the potential, density and flow velocity near the edge of a tokamak plasma are investigated. The model includes the nonlinearity in bulk-ion viscosity and turbulence-driven shear viscosity. For the case with a strong radial electric field (H-mode), a two-dimensional structure in a transport barrier is obtained, giving a poloidal shock with a solitary radial electric field profile. The poloidal electric field induces convective transport in the radial direction, and poloidal asymmetry makes the flux-surface-averaged particle flux direct inward with a pinch velocity on the order of 1 [m/s]. A large poloidal flow with radial shear enhances the inward pinch velocity. The abrupt increase of this inward ion and electron flux at the onset of L-to-H-mode transition explains the rapid establishment of the density pedestal at the transition.

Journal

  • Journal of Plasma and Fusion Research

    Journal of Plasma and Fusion Research 81(7), 553-562, 2005-07-25

    The Japan Society of Plasma Science and Nuclear Fusion Research

References:  45

  • <no title>

    ITOH K.

    Transport and structural formation in plasmas, 1999

    Cited by (12)

  • <no title>

    WAGNER F.

    Phys. Rev. Lett. 49, 1408, 1982

    Cited by (45)

  • <no title>

    ITOH S.-I.

    Phys. Rev. Lett. 60, 2276, 1988

    Cited by (21)

  • <no title>

    ITOH S.-I.

    Nucl. Fusion 29, 1031, 1989

    Cited by (4)

  • <no title>

    SHAING K. C.

    Phys. Rev. Lett. 63, 2369, 1989

    Cited by (17)

  • <no title>

    ITOH S.-I.

    J. Phys. Soc. Jpn. 59, 3815, 1990

    Cited by (7)

  • <no title>

    BIGLARI H.

    Phys. Fluids B 2, 1, 1990

    Cited by (17)

  • <no title>

    BURREL K. H.

    Phys. Plasmas 4, 1499, 1997

    Cited by (2)

  • <no title>

    WAGNER F.

    Proceeedings of the 13th International Conference on Plasma Physics and Controlled Nucler Fusion Research, Washington, 1990 1, 277, 1991

    Cited by (1)

  • <no title>

    WAGNER F.

    Plasma Phys. Control. Fusion 35, 1321, 1993

    Cited by (4)

  • <no title>

    WARE A. A.

    Phys. Rev. Lett. 25, 916, 1970

    Cited by (1)

  • <no title>

    STROTH U.

    Phys. Rev. Lett. 82, 928, 1999

    Cited by (2)

  • <no title>

    ITOH S.-I.

    J. Phys. Soc. Japan 59, 3431, 1990

    Cited by (1)

  • <no title>

    PURI S.

    Plasma Phys. Control. Fusion 41, L35, 1999

    Cited by (1)

  • <no title>

    COPPI B.

    Phys.Rev.Lett. 41, 551, 1978

    Cited by (2)

  • <no title>

    TANIUTI T.

    J. Phys. Soc. Jpn 61, 568, 1992

    Cited by (2)

  • <no title>

    TAYLOR R. J.

    Proceedings of 15th International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Seville, 1994 2, 127, 1995

    Cited by (1)

  • <no title>

    TYNAN G. R.

    Plasma Phys. Control. Fusion 38, 1301, 1996

    Cited by (1)

  • <no title>

    TAYLOR R. J.

    Phys. Rev. Lett. 63, 2365, 1989

    Cited by (10)

  • <no title>

    WEYNANTS R. R.

    Nucl.Fusion 32, 837, 1992

    Cited by (6)

  • <no title>

    FUJISAWA A.

    Phys. Rev. Lett. 79, 1054, 1997

    Cited by (10)

  • <no title>

    KASUYA N.

    J. Plasma Fusion Res. SERIES 6, 283, 2004

    Cited by (1)

  • <no title>

    HIRSHMAN S. P.

    Nucl. Fusion 21, 1079, 1981

    Cited by (21)

  • <no title>

    IDA K.

    Phys Plasmas 4, 310, 1997

    Cited by (2)

  • <no title>

    KASUYA N.

    Ph. D. Thesis, Univ. Tokyo, 2003

    Cited by (1)

  • <no title>

    ITOH K.

    Plasma Phys. Control. Fusion 38, 1, 1996

    DOI  Cited by (35)

  • <no title>

    COPPI B.

    Nucl. Fusion 21, 1363, 1981

    Cited by (1)

  • <no title>

    GOHIL P.

    Plasma Phys. Control. Fusion 44, A37, 2002

    Cited by (1)

  • <no title>

    IGUCHI H.

    Plasma Phys. Control. Fusion 36, 1091, 1994

    Cited by (1)

  • <no title>

    HOANG G. T.

    Phys. Rev. Lett. 90, 155002, 2003

    Cited by (1)

  • <no title>

    RICE J. E.

    Phys. Plasmas 4, 1605, 1997

    Cited by (1)

  • <no title>

    VARMA R. K.

    Plasma Phys. Control. Fusion 40, 1999, 1998

    Cited by (1)

  • <no title>

    SHAING K. C.

    Phys. Fluids B 2, 2353, 1990

    Cited by (1)

  • <no title>

    DOMINGUEZ R. R.

    Phys. Fluids B 5, 1782, 1993

    Cited by (1)

  • <no title>

    JENKO F.

    Phys. Plasmas 7, 514, 2000

    Cited by (1)

  • <no title>

    NYCANDER J.

    Phys. Plasmas 2, 2874, 1995

    Cited by (1)

  • <no title>

    ISICHENKO M. B.

    Phys. Plasmas 3, 1916, 1996

    Cited by (1)

  • <no title>

    GARBET X.

    Phys. Rev. Lett. 91, 035001, 2003

    Cited by (1)

  • <no title>

    SHAING K. C.

    Phys. Fluids B 4, 404, 1992

    Cited by (2)

  • <no title>

    SCHAFFER M. J.

    Phys. Plasmas 8, 2118, 2001

    Cited by (1)

  • <no title>

    STACEY W. M.

    Phys. Plasmas 9, 3874, 2002

    Cited by (1)

  • <no title>

    ITOH K.

    Phys. Plasmas 5, 4121, 1998

    DOI  Cited by (4)

  • <no title>

    KASUYA N.

    Nucl. Fusion 43, 244, 2003

    Cited by (3)

  • <no title>

    SHAING K. C.

    Phys. Fluids B 2, 1492, 1990

    DOI  Cited by (9)

  • <no title>

    SHAING K. C.

    Phys. Fluids B 2, 2847, 1990

    DOI  Cited by (2)

Codes

  • NII Article ID (NAID)
    110006281953
  • NII NACSIS-CAT ID (NCID)
    AN10401672
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    09187928
  • NDL Article ID
    7434849
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z15-8
  • Data Source
    CJP  NDL  NII-ELS  J-STAGE  NDL-Digital 
Page Top