Kinetic Simulation of Alfvenic Interactions of Small Transverse Scale

小横向尺度阿尔芬相互作用的动力学模拟

• 批准号: 0138187
• 负责人: George Morales
• 金额: $ 22.5万
• 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: 2002
• 资助国家: 美国
• 起止时间: 2002-06-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0138187&HistoricalAwards=false
• 关键词: Kinetic; Simulation; Alfvenic; Interactions; Small

Alfven waves and the field-aligned electric currents associated with them form the primary basis for the electromagnetic coupling between the magnetosphere and the ionosphere. This project will use a particle-in-cell (PIC) computer code to perform kinetic simulations of the interaction of Alfven waves with gradients and structures in the ionosphere. The topics to be studied include the interaction with pre-existing density cavities, nonlinear reflections from boundaries, modulations produced by double-layers, the generation of high-frequency noise and the effects of cross-field plasma flows.

阿尔文波和与之相关的场对准电流构成了磁层和电离层之间电磁耦合的主要基础。 该项目将使用细胞内粒子（PIC）计算机代码对阿尔文波与电离层梯度和结构的相互作用进行动力学模拟。 要研究的主题包括与预先存在的密度空腔的相互作用、边界的非线性反射、双层产生的调制、高频噪声的产生以及交叉场等离子体流的影响。