Self-sustained turbulence and H-mode confinement in toroidal plasmas

Sanae I. Itoh, Kimitaka Itoh, Masatoshi Yagi, Atsushi Fukuyama

研究成果: ジャーナルへの寄稿記事

15 引用 (Scopus)

抄録

The method of self-sustained turbulence is applied to the tokamak plasma, incorporating the effect of an inhomogeneous radial electric field. The transport coefficient is derived, making a bridge between L- and H-phase plasmas. It is possible to construct a unified transport model of the L- and H-mode phases. The anomalous transport coefficients are obtained in a unified and explicit form in terms of profile parameters such as the plasma pressure gradient, the magnetic shear, the shear and curvature of the radial electric field. Strong reductions of the thermal conductivity, χ, the electron and ion viscosities, μe and μ, and the turbulent level in the H-phase plasma are explained. Furthermore, an additional stability window due to Er′ is discovered in the higher pressure-gradient regime. The anomalous ion viscosity determines Δ, the typical scale length or Er. Self-consistent solutions of Δ and μ are discussed.

元の言語英語
ページ(範囲)1743-1762
ページ数20
ジャーナルPlasma Physics and Controlled Fusion
38
発行部数10
DOI
出版物ステータス出版済み - 12 1 1996

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Plasma confinement
toroidal plasmas
Turbulence
turbulence
Plasmas
pressure gradients
transport properties
Pressure gradient
viscosity
shear
plasma pressure
electric fields
Electric fields
Viscosity
Ions
ions
thermal conductivity
curvature
Thermal conductivity
profiles

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

これを引用

Self-sustained turbulence and H-mode confinement in toroidal plasmas. / Itoh, Sanae I.; Itoh, Kimitaka; Yagi, Masatoshi; Fukuyama, Atsushi.

:: Plasma Physics and Controlled Fusion, 巻 38, 番号 10, 01.12.1996, p. 1743-1762.

研究成果: ジャーナルへの寄稿記事

Itoh, Sanae I. ; Itoh, Kimitaka ; Yagi, Masatoshi ; Fukuyama, Atsushi. / Self-sustained turbulence and H-mode confinement in toroidal plasmas. :: Plasma Physics and Controlled Fusion. 1996 ; 巻 38, 番号 10. pp. 1743-1762.
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