Enhanced Diffusion in Longitudinal Plasma Turbulence

纵向等离子体湍流中的增强扩散

• 批准号: 9306221
• 负责人: John Cary
• 金额: $ 17万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1997-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9306221&HistoricalAwards=false
• 关键词: Enhanced; Diffusion; Longitudinal; Plasma; Turbulence

9306221 Cary The project is designed to settle some questions in plasma turbulence which center around the domain of validity of the quasilinear theory. Recent numerical simulations suggest that the growth rate of a slowly growing turbulent spectrum can be enhanced over the linear value. Experiments and early simulations do not exhibit this enhancement. The numerical work to be undertaken is designed to definitively answer the question by performing numerical simulations using simplistic methods which are an order of magnitude faster than currently available numerical approaches. ***

9306221卡里 本课题旨在解决等离子体湍流中的一些问题，这些问题围绕着准线性理论的有效性域展开。 最近的数值模拟表明，缓慢增长的湍流谱的增长率可以提高超过线性值。 实验和早期的模拟没有表现出这种增强。 要进行的数值工作的目的是明确回答这个问题，通过执行数值模拟，使用简单的方法，这是一个数量级的速度比目前可用的数值方法。 ***