Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations。本词条依据上传的论文目录整理,未对论文元数据及引用次数作独立核实。
基本信息
- 作者:Z Lin,T S Hahm,W W Lee,W M Tang,R B White
- 机构:普林斯顿大学
- 期刊:Science
- 年份:1998
- 引用次数(上传表记录):901
- 关键词:输运, 带状流
- DOI:10.1126/science.281.5384.1835
摘要
Three-dimensional gyrokinetic simulations of microturbulence in magnetically confined toroidal plasmas with massively parallel computers showed that, with linear flow damping, an asymptotic residual flow develops in agreement with analytic calculations. Nonlinear global simulations of instabilities driven by temperature gradients in the ion component of the plasma support the view that turbulence-driven fluctuating zonal flows can substantially reduce turbulent transport. Finally, the outstanding differences in the flow dynamics observed in global and local simulations are found to be due to profile variations.