欢迎访问《核聚变与等离子体物理》官方网站,今天是 分享到:

核聚变与等离子体物理 ›› 2015, Vol. 35 ›› Issue (3): 193-197.DOI: 10.16568/j.0254-6086.201503001

• 等离子体物理学 •    下一篇

基于谱估计方法的等离子体湍流三波耦合数据处理算法

沈勇,董家齐,石中兵,赵开君   

  1. (1. 核工业西南物理研究院,成都 610041;2. 浙江大学聚变理论与模拟中心,杭州 310013)
  • 出版日期:2015-09-15 发布日期:2015-09-15
  • 作者简介:沈勇(1969-),男,重庆人,博士,高级工程师,主要从事等离子体理论与计算机模拟研究。
  • 基金资助:

    国家磁约束核聚变能研究专项(2013GB111005);国家自然科学基金(11175057,11475057)

Data processing algorithm of three-wave coupling in plasma turbulences by spectral estimation methods

SHEN Yong1, DONG Jia-qi1, 2, SHI Zhong-bing1, ZHAO Kai-jun1   

  1. (1. Southwestern Institute of Physics, Chengdu 610041; 2. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310013)
  • Online:2015-09-15 Published:2015-09-15

摘要:

基于数字谱分析技术求解波耦合方程,进而计算与三波相互作用相关联的线性耦合系数和能量转移,以此开发了数据处理程序用于研究HL-2A 装置等离子体边缘湍流中的非线性能量传递过程。介绍了算法设计和开发的主要思想。应用该程序对与带状流相关的一次放电的实验数据进行了数据处理研究。结果表明,带状流是由等离子体湍流的能量逆级联所驱动的。

关键词: 谱估计方法, 等离子体湍流, 波耦合, 能量级联

Abstract:

Based on the Ritz method to resolve the waves-coupling equation, the data processing code was developed to investigate the non-linear energy transfer progress in plasma edge turbulence in HL-2A tokamak. The arithmetic principle and the development methods of this code were introduced. By use of this program, the discharge data with relation to zonal flow were processed and studied. The results show that zonal flow was driven by the inverse energy cascade in the plasma turbulence.

Key words: Spectral estimation methods, Plasma turbulence, Wave coupling, Energy cascading

中图分类号: