SHINE: Incorporating 3D Reduced Magnetohydrodynamics (RMHD) Turbulence Simulations and Kinetic Plasma Physics into a Two-Fluid Model of the Solar Wind

SHINE：将 3D 简化磁流体动力学 (RMHD) 湍流模拟和动力学等离子体物理学纳入太阳风的双流体模型

• 批准号: 1258998
• 负责人: Benjamin Chandran
• 金额: $ 42.87万
• 依托单位: University of New Hampshire
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-08-01 至 2017-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1258998&HistoricalAwards=false
• 关键词: SHINE; Incorporating; 3D; Reduced; Magnetohydrodynamics

With this three-year SHINE project, the researchers will explore the means by which the solar wind and Alfven-wave turbulence are affected by variations in the amplitude, wavenumber spectrum, and frequency spectrum of the waves that are launched by the Sun. The project team will also consider the effects of magnetic geometry (in particular, the degree of super-radial expansion) on the properties of turbulence and the background solar wind, which will enable them to explore the possible relevance of Alfven-wave turbulence to the heating and acceleration of both the fast solar wind and the slow solar wind. The team will compare the results obtained from numerical simulations to a wide range of observations of coronal holes and the near-Sun solar wind, including measurements of Faraday rotation, ion temperatures, and electron densities. This research project is expected to significantly advance the community's understanding of the role that Alfven-wave turbulence may play in the origin of the solar wind.During this project, the team will co-organize sessions on turbulence and the solar wind at the annual SHINE Workshop. The PI will also deliver lectures at summer schools on plasma physics and heliospheric physics for advanced undergraduate students and graduate students. The PI will incorporate results from this project into courses that he teaches at the University of New Hampshire, to expose students to current research in heliospheric physics. The project team will also share and discuss the results of this work with members of the Solar Probe Plus FIELDS and SWEAP experiments, to offer guidance as to the possible relation between future measurements from Solar Probe Plus and Alfven-wave turbulence in the solar wind. The research and EPO agenda supports the Strategic Goals of the AGS Division in discovery, learning, diversity, and interdisciplinary research.

通过这个为期三年的光泽项目，研究人员将探索太阳风和alfven波湍流受振幅，波数频谱的变化和频率频谱的影响。 项目团队还将考虑磁性几何形状（特别是超大扩张程度）对湍流和背景太阳风的特性的影响，这将使他们能够探索Alfven-Wave湍流与快速太阳风和缓慢的太阳风和慢速阳光风的加热和加速的可能相关性。 该团队将比较从数值模拟获得的结果与冠状孔和近似太阳风的广泛观察结果，包括测量法拉第旋转，离子温度和电子密度。 预计该研究项目将大大促进社区对Alfven波湍流可能在太阳风的起源中发挥的作用的理解。在此项目中，该团队将在年度Shine Workshop上共同组织有关湍流和太阳风的会议。 PI还将在暑期学校提供有关高级本科生和研究生的血浆物理学和Heliospheric Physics的讲座。 PI将将该项目的结果纳入他在新罕布什尔大学教授的课程中，以使学生了解当前的Heliospheric物理学研究。项目团队还将与太阳能探针加上田地和外套实验的成员共享并讨论这项工作的结果，以提供有关太阳能探针Plus和太阳风中Alfven-Wave湍流的未来测量结果之间可能关系的指导。 研究和EPO议程支持AGS部门在发现，学习，多样性和跨学科研究方面的战略目标。