SHINE: Self-Consistent Turbulent Magnetic Reconnection in the Solar Corona

首席研究员（PI）将通过使用与日冕相关的磁流体动力学（MHD）模型的大规模数值模拟来研究湍流磁重联过程。具体来说，该研究小组将研究太阳上随机磁场足点运动如何产生不稳定性、大规模流体运动、阿尔文波和湍流；确定磁重联率与自洽产生的 MHD 湍流水平之间的关系；并获得重联时间尺度和能量耗散率的总体伦德奎斯特数标度。研究人员还将研究动态产生阿尔文波湍流的过程，而不是从外部施加湍流。磁重联和湍流问题与太阳能研究高度相关。该项目获得的科学成果将增进我们对太阳物理学许多基本现象的理解，例如日冕加热、太阳耀斑和日冕物质抛射。磁重联过程不仅适用于日冕和日光层的物理学，而且也是许多不同物理系统的基础，例如行星磁层、天体物理吸积盘和聚变实验。该项目将全力支持一名研究生，并为一名博士后研究员提供部分支持。 PI 计划积极参与阿拉斯加大学费尔班克斯分校 (UAF) 社区的教育和外展活动，例如通过 UAF 地球物理研究所的“公共信息和教育外展办公室”组织的活动，以及由 UAF 的“科学教育外展网络”协调的活动。该 PI 还将在 UAF 教授等离子体和空间物理大学课程。该项目中开发的模拟代码将提供给科学界。

The Principal Investigator (PI) will study the process of turbulent magnetic reconnection through the use of large-scale numerical simulations of magnetohydrodynamic (MHD) models in regimes relevant to the solar corona. Specifically, this research team will investigate how random magnetic field footpoint motions on the Sun produce instabilities, large-scale fluid motions, Alfvén waves, and turbulence; determine how the magnetic reconnection rate correlates with the level of self-consistently produced MHD turbulence; and obtain the overall Lundquist number scaling of the reconnection time-scale and energy dissipation rate. The researchers will also study the process that generates Alfvén wave turbulence dynamically, instead of imposing turbulence externally. This problem of magnetic reconnection and turbulence is highly relevant to solar research. The science results obtained from this project will increase our understanding of many fundamental phenomena in solar physics, such as coronal heating, solar flares, and coronal mass ejections. The process of magnetic reconnection not only applies to the physics of the solar corona and heliosphere, but is also fundamental in many different physical systems, such as planetary magnetospheres, astrophysical accretion disks, and fusion experiments. This project will fully support a graduate student and provide partial support for a Post Doctoral Research Fellow. The PI plans to actively participate in education and outreach activities in the University of Alaska Fairbanks (UAF) community, such as those organized through the 'Public Information and Education Outreach Office' of UAF's Geophysical Institute, as well as those coordinated by UAF's 'Science Education Outreach Network.' The PI will also teach university courses in plasma and space physics at UAF. The simulation codes developed in this project will be made available to the scientific community.