Multiscale Intermittent Turbulence and Self-Organized Criticality in Earth

地球多尺度间歇湍流和自组织临界

• 批准号: 9910425
• 负责人: Tom Chang
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-01 至 2004-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9910425&HistoricalAwards=false
• 关键词: Multiscale; Intermittent; Turbulence; Self; Organized

This program will utilize the dynamic renormalization group formalism to study the turbulence structures in the Earth's magnetotail. Turbulence in non-linear systems may lead to self-organized criticality, which may explain such phenomena as bursty bulk flows and substorm phenomena. The model will be based on renormalization group theory for systems far from equilibrium. In addition to the purely theoretical studies, self-consistent numerical simulations will be carried out. Emphasis will be placed on the sporadic and localized fluctuations of the magnetotail

该计划将利用动态重整化群形式主义来研究地球磁尾的湍流结构。 非线性系统中的湍流可能导致自组织临界性，这可以解释诸如突发整体流和亚暴现象等现象。 该模型将基于远离平衡的系统的重整化群理论。 除了纯理论研究外，还将进行自洽数值模拟。 重点将放在磁尾的零星和局部波动