Basic Studies of Non-Diffusive Transport in Plasmas

等离子体非扩散输运的基础研究

• 批准号: 1004313
• 负责人: George Morales
• 金额: $ 1.5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2013-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1004313&HistoricalAwards=false
• 关键词: Basic; Studies; Non; Diffusive; Transport

This award is made in response to a proposal submitted to and reviewed under the NSF/DOE Partnership in Basic Plasma Science and Engineering joint solicitation NSF 09-596. The award provides funds to support undergraduate participation in the overall research effort, which is being funded separately by the DOE under contract to UCLA (Grant DE-FG02-10ER55082).This project consists of basic studies of non-diffusive transport in magnetized plasmas. By non-diffusive it is meant that the transport of fundamental macroscopic parameters of a system, such as temperature and density, does not follow the standard diffusive behavior predicted by a classical Fokker-Planck equation. Contemporary studies in broad areas of science are increasingly identifying the important role of non-diffusive transport. Numerous examples can be found in widely different fields such as biology, geology, atmospheric sciences, and plasma science. The project team consists of Prof. George Morales (PI) and Dr. James Maggs (co-PI) at UCLA, a senior collaborator, Dr. Diego del-Castillo-Negrete at Oak Ridge National Laboratory, and a graduate student at UCLA, Adam Kullberg. The project aims to expand and develop mathematical descriptions, and corresponding numerical modeling, of non-diffusive transport to incorporate recent perspectives derived from basic laboratory experiments performed in the LAPD-U device at UCLA. The project will proceed by first tackling simpler issues and sequentially increasing the complexity to a level where experimental comparisons are possible and new experiments can be designed. The intellectual merit of this project is that it provides a unique connection between modern advances in the mathematical description of non-diffusive transport and basic plasma experiments in which the role of fluctuations can be related, under controlled conditions, to the transition between classical and anomalous transport.The broader impacts include the generation of basic insight useful to magnetic fusion and space science researchers, completion of a Ph.D. dissertation in broad areas of national interest, establishing a valuable exchange between academic and national laboratory researchers, and promotion of interest in science through community outreach events and classroom instruction.The NSF support of undergraduate participation adds a broader educational impact through the early-year training of students by introducing them to scientific research as a possible career path.

该奖项是根据NSF/DOE基础等离子体科学与工程合作伙伴关系联合招标NSF 09-596提交并审查的提案作出的。该奖项提供资金支持本科生参与整体研究工作，由美国能源部根据与加州大学洛杉矶分校的合同单独资助（Grant DE-FG02-10ER55082）。本项目包括磁化等离子体中非扩散输运的基础研究。所谓非扩散是指系统的基本宏观参数，如温度和密度的输运，不遵循经典福克-普朗克方程所预测的标准扩散行为。当代广泛科学领域的研究日益认识到非扩散输运的重要作用。在生物学、地质学、大气科学和等离子体科学等广泛不同的领域都可以找到许多例子。项目团队由加州大学洛杉矶分校的George Morales教授（PI）和James Maggs博士（co-PI），橡树岭国家实验室的Diego del-Castillo-Negrete博士和加州大学洛杉矶分校的研究生Adam Kullberg组成。该项目旨在扩展和发展非扩散输运的数学描述和相应的数值模拟，以结合在加州大学洛杉矶分校的LAPD-U设备中进行的基础实验室实验的最新观点。该项目将首先解决较简单的问题，然后依次增加复杂性，使实验比较成为可能，并可以设计新的实验。这个项目的智力价值在于，它提供了非扩散输运数学描述的现代进展与基本等离子体实验之间的独特联系，在这些实验中，波动的作用可以在受控条件下与经典输运和异常输运之间的过渡联系起来。更广泛的影响包括产生对磁聚变和空间科学研究人员有用的基本见解，完成国家感兴趣的广泛领域的博士论文，在学术和国家实验室研究人员之间建立有价值的交流，并通过社区外展活动和课堂教学促进对科学的兴趣。美国国家科学基金会对本科生参与的支持，通过将学生引入科学研究作为一种可能的职业道路，对他们进行早期培训，从而增加了更广泛的教育影响。