中国物理B ›› 2004, Vol. 13 ›› Issue (12): 2091-2096.doi: 10.1088/1009-1963/13/12/020
冯春华1, 王文浩2, 何也熙2, 高喆2, 曾立2, 张国平2, 解丽凤2
Wang Wen-Hao (王文浩)a, He Ye-Xi (何也熙)a, Gao Zhe (高喆)a, Zeng Li (曾立)a, Zhang Guo-Ping (张国平)a, Xie Li-Feng (解丽凤)a, Feng Chun-Hua(冯春华)b
摘要: The temporal intermittency of the fluctuation-driven particle transport fluxes is analysed by using data obtained from Langmuir probe array in the edge of the Sino-United Spherical Tokamak (SUNIST). The conditional statistics analysis indicates that the intermittent structures have a characteristic time width of about 30μs, which is the typical fluctuation time scaling. It is also found that the transport fluxes have a multifractal character over the fluctuation time scales, and exhibit a long-time-range correlation character with self-similar parameter H>0.5 in the plasma confinement time scales. Furthermore, the analyses show that the level of the intermittency and the long-range correlation of the fluxes vary with increasing plasma density. These observations are consistent with the prediction of the avalanche-like model.
中图分类号: (Plasma-material interactions; boundary layer effects)