Mathematical modelling of solar plasma jets

太阳等离子体射流的数学建模

• 批准号: 2265147
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2265147
• 关键词: Mathematical; modelling; solar; plasma; jets

The Student i) I will generalise the analyses of larger, so-called macro-spicule, jets to the much more ubiquitous small jets (called spicules) and much larger jets (called surges) i order to have a wide range of energy spectrums of these phenomena. Study will be conducted to investigate whether these solar jets follow a Kolmogorov distributions. A conclusive statement on the nature of the solar jet energy spectrum would be a leap in the field with wider impacts. ii) will also build a mathematical (analytical) model of rotating magnetic tornadoes (i.e rotating jets) and validate the modelling with the gathered data. Iii) Finally, the student will carry out stability analysis of rotating jets that is an active area of research in the field of solar and general plasma astrophysics. We anticipate that the currently widely accepted instability threshold will be revised enabling the student to have another high-profile (more theoretical) impact in the field.

学生 i) 我将对较大的所谓宏观针状射流的分析推广到更普遍的小型射流（称为针状体）和更大的射流（称为浪涌），以便获得这些现象的广泛能谱。将进行研究以调查这些太阳射流是否遵循柯尔莫哥洛夫分布。关于太阳喷射能谱性质的结论性声明将是该领域的一次飞跃，具有更广泛的影响。 ii) 还将建立旋转磁龙卷风（即旋转射流）的数学（分析）模型，并使用收集的数据验证模型。 III) 最后，学生将进行旋转射流的稳定性分析，这是太阳和一般等离子体天体物理学领域的一个活跃研究领域。我们预计目前广泛接受的不稳定阈值将被修改，使学生能够在该领域产生另一个引人注目的（更具理论性的）影响。