论文信息 - Effects of ion temperature fluctuations on the stability of resistive ballooning modes

Effects of ion temperature fluctuations on the stability of resistive ballooning modes

The influence of ion temperature fluctuations on the stability of resistive drift and ballooning modes is investigated using a two-fluid model. The eigenmode equations are derived and solved analytically in a low beta model equilibrium. Parameters relevant to low-confinement-mode (L-mode) edge plasmas from the Texas Experimental Tokamak (TEXT) [Phys. Fluids B 2, 2879 (1990)] are used. The resistive modes are found to be destabilized by ion temperature fluctuations over a broad range of mode numbers. The scaling of the growth rate with magnetic shear, ηi(Ln/LTi) and the mode number is elucidated.

J. Weiland | H. Nordman | A. Jarmén | Raghvendra Singh

[1] Clifford E Singer,et al. Theory-based transport modeling of TFTR , 1995 .

[2] T. Antonsen,et al. Stability of resistive and ideal ballooning modes in the Texas Experimental Tokamak and DIII‐D , 1992 .

[3] G. Bateman. Theory‐based transport simulations of TFTR L‐mode temperature profiles , 1992 .

[4] Scott. Self-sustained collisional drift-wave turbulence in a sheared magnetic field. , 1990, Physical review letters.

[5] A. Wootton,et al. Fluctuations and anomalous transport in tokamaks , 1990 .

[6] J. Weiland,et al. Simulation of toroidal drift mode turbulence driven by temperature gradients and electron trapping , 1990 .

[7] Brown,et al. H-mode behavior induced by cross-field currents in a tokamak. , 1989, Physical review letters.

[8] T. Rhodes,et al. Global particle confinement in the Texas Experimental Tokamak , 1987 .

[9] Jan Weiland,et al. Fully toroidal ion temperature gradient driven drift modes , 1987 .

[10] P. Liewer. Measurements of microturbulence in tokamaks and comparisons with theories of turbulence and anomalous transport , 1985 .

[11] Thomas M. Antonsen,et al. Nonlinear reduced fluid equations for toroidal plasmas , 1984 .

[12] J. W. Connor,et al. Shear, periodicity, and plasma ballooning modes , 1978 .

[13] B. Lipschultz,et al. Poloidal asymmetries in the scrape-off layer plasma of the Alcator C tokamak , 1987 .