Long Range Transport Events in Plasma Turbulence and Comparison with Complex Dynamics Theory

等离子体湍流中的长程输运事件及其与复杂动力学理论的比较

• 批准号: 0078372
• 负责人: William Peebles
• 金额: $ 43.9万
• 依托单位: University of California-Los Angeles
• 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: 2000-07-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0078372&HistoricalAwards=false
• 关键词: Long; Range; Transport; Events; Plasma

Recent research has suggested that plasma turbulence and the associated transport of particles may also be consistent with a state of self-organized criticality (SOC). However, unambiguous identification of an SOC state for turbulence in plasmas has not been made, and existing evidence remains primarily suggestive. The universality of SOC-like systems, the ability to explain non-local phenomena and their independence of detailed mode characteristics motivate the current research effort. The primary goal of the project is to search for long-range correlation of turbulent transport events and to contrast and compare in detail experimental measurements with the predictions of complex dynamic theory. The work will be performed by a combined theoretical and experimental team, with experiments being carried out on the new Large Plasma Device under construction at the University of California, Los Angeles.

最近的研究表明，等离子体湍流和相关的粒子输运也可能与自组织临界性(SOC)状态一致。然而，等离子体中湍流的SOC状态还没有得到明确的识别，现有的证据仍然主要是提示性的。类SOC系统的普适性、解释非局域现象的能力以及它们对详细模式特性的独立性推动了当前的研究工作。该项目的主要目标是寻找湍流输送事件的长期相关性，并将实验测量结果与复杂动力学理论的预测进行详细的对比和比较。这项工作将由一个理论和实验相结合的团队进行，实验将在加州大学洛杉矶分校正在建设的新的大型等离子体设备上进行。