Nonlinear Dynamics of Strong Interchange Instabilities in a Rotating Dipole Plasma
旋转偶极等离子体中强交换不稳定性的非线性动力学
基本信息
- 批准号:0903772
- 负责人:
- 金额:$ 9万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2009
- 资助国家:美国
- 起止时间:2009-10-01 至 2012-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
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 08-589. The award provides funds to partially support the graduate student participation in the overall research effort, which is being funded separately by the DoE [Grant DE-FG02-00ER54585OFES]. The nonlinear dynamics of strong interchange instabilities concern fundamental phenomenon occurring in a variety of natural and artificial situations. In this work, laboratory techniques will be used to produce intense interchange instabilities, induce strong interchange convection, and sustain steady interchange turbulence. The investigations focus on measurement, modification, and understanding of strong interchange turbulence. Previous work has found that interchange turbulence is dominated by large-scale rotating structures, and, probably, these structures represent a "self-organized" state. With this award, remaining questions concerning the precise nature of structure coupling and transport will be addressed with improved diagnostics, additional probes, and advanced simulations using our newly parallelized nonlinear interchange code. The combination of detailed experimental measurements, computer simulation, and computer data analysis will test developing theory and provide a basis for understanding a variety of nonlinear processes which occur in plasmas produced in the laboratory and found in nature.The Collisionless Terrella Experiment (CTX) research project creates connections between laboratory plasma physics, natural plasma phenomena, nonlinear physics, and computational physics. CTX serves a central and important role in the educational opportunities for Columbia University graduate and undergraduate students. Undergraduate student research interns assembled the CTX device, and this project will continue to be a student-focused research program. This project attracts outstanding graduate and undergraduate students and has provided hands-on research experience to talented high school students.This NSF award provides support for the Graduate Research Assistant involved with this research project.
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 08-589提交并审查的提案作出的。该奖项提供部分资金支持研究生参与整体研究工作,由美国能源部单独资助[Grant DE-FG02-00ER54585OFES]。强交换不稳定性的非线性动力学涉及在各种自然和人为情况下发生的基本现象。在这项工作中,实验室技术将用于产生强烈的交换不稳定性,诱导强烈的交换对流,并维持稳定的交换湍流。研究的重点是强交换湍流的测量、修正和理解。先前的研究发现,交换湍流是由大型旋转结构主导的,而且,这些结构可能代表了一种“自组织”状态。有了这个奖项,关于结构耦合和传输的精确性质的剩余问题将通过改进的诊断、额外的探针和使用我们新的并行化非线性交换代码的高级模拟来解决。详细的实验测量、计算机模拟和计算机数据分析的结合将检验发展中的理论,并为理解实验室产生的和自然界中发现的等离子体中发生的各种非线性过程提供基础。无碰撞Terrella实验(CTX)研究项目在实验室等离子体物理、自然等离子体现象、非线性物理和计算物理之间建立了联系。CTX在哥伦比亚大学研究生和本科生的教育机会中发挥着核心和重要的作用。本科生研究实习生组装了CTX设备,该项目将继续以学生为中心的研究项目。该项目吸引了优秀的研究生和本科生,并为有才华的高中生提供了实践研究经验。该NSF奖为参与本研究项目的研究生研究助理提供支持。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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An optical-input Maximum Likelihood Estimation feedback system demonstrated on tokamak horizontal equilibrium control
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10.1016/j.fusengdes.2023.113565 - 发表时间:
2023-06-01 - 期刊:
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- 作者:
Rian Chandra;Jeffrey Levesque;Yumou Wei;Boting Li;Alex Saperstein;Ian Stewart;Christopher Hansen;Michael Mauel;Gerald Navratil - 通讯作者:
Gerald Navratil
Improved pulsed-field gel electrophoresis procedure for the analysis of <em>Flavobacterium columnare</em> isolates previously affected by DNA degradation
- DOI:
10.1016/j.vetmic.2007.10.001 - 发表时间:
2008-04-01 - 期刊:
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- 作者:
Esteban Soto;Michael Mauel;Mark Lawrence - 通讯作者:
Mark Lawrence
Michael Mauel的其他文献
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{{ truncateString('Michael Mauel', 18)}}的其他基金
Collaborative Research: Understanding Turbulent Mixing in Laboratory Magnetospheres
合作研究:了解实验室磁层中的湍流混合
- 批准号:
1201874 - 财政年份:2012
- 资助金额:
$ 9万 - 项目类别:
Continuing Grant
Physics of Plasma Confined by a Dipole Magnetic Field
偶极子磁场约束等离子体的物理学
- 批准号:
9111396 - 财政年份:1992
- 资助金额:
$ 9万 - 项目类别:
Standard Grant
Data Acquisition and Analysis For Applied Physics Laboratories
应用物理实验室的数据采集和分析
- 批准号:
9151476 - 财政年份:1991
- 资助金额:
$ 9万 - 项目类别:
Standard Grant
Plasma and Microwave Physics of ECR Sources
ECR 源的等离子体和微波物理
- 批准号:
8912756 - 财政年份:1990
- 资助金额:
$ 9万 - 项目类别:
Continuing Grant
Physics of Plasma Confined by a Dipole Magnetic Field
偶极子磁场约束等离子体的物理学
- 批准号:
8820369 - 财政年份:1989
- 资助金额:
$ 9万 - 项目类别:
Continuing Grant
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