权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Exotic plasma instabilities in strongly rotating tokamak plasmas

强旋转托卡马克等离子体中的奇异等离子体不稳定性

基本信息

批准号：
2606789
负责人：
金额：
--
依托单位：
University of York
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2606789
关键词：
Exotic plasma instabilities strongly rotating

项目摘要

I completed my MSci in Physics With a Year Abroad at Imperial College London in 2020 and have long been interested in nuclear fusion. My desire to pursue an academic career in the field only solidified after I wrote my master's thesis on the topic of magnetohydrodynamic instabilities in tokamaks. I will be starting a PhD project at the York Plasma Institute entitled "Exotic Plasma Instabilities in Strongly Rotating Tokamak Plasma" and supervised by Howard Wilson (University of York) and Jonathan Graves (EPFL, Lausanne).Neutral beam injection, commonly used for heating tokamak plasmas, imparts momentum to the plasma. In this way it can drive significant plasma rotation in tokamaks like MAST-U, at which point centrifugal and Coriolis effects become important. These can affect the behavior of plasma instabilities and even introduce new ones. Because future tokamaks like STEP and ITER will experience very little rotational flow it is important to study now how it can impact plasma dynamics and stability. My project will focus on studying rotation-driven Kelvin Helmholtz-like instabilities using a combination of analytical methods and computational modelling. In particular, the goal is to identify the conditions for which these instabilities occur and develop a computational model which may be extended to future tokamaks.

我于2020年在伦敦帝国理工学院完成了物理学硕士学位，并长期对核聚变感兴趣。在我写了关于托卡马克磁流体动力学不稳定性的硕士论文后，我在该领域从事学术事业的愿望才得以巩固。我将在约克等离子体研究所开始一个名为“强旋转托卡马克等离子体中的外来等离子体不稳定性”的博士项目，由霍华德·威尔逊（约克大学）和乔纳森·格雷夫斯（洛桑洛桑EPFL）指导。中性束注入，通常用于加热托卡马克等离子体，给等离子体提供动量。通过这种方式，它可以在MAST-U等托卡马克中驱动显著的等离子体旋转，此时离心和科里奥利效应变得重要。这些会影响等离子体不稳定性的行为，甚至引入新的不稳定性。由于未来的托卡马克（如STEP和ITER）将经历非常少的旋转流，因此现在研究它如何影响等离子体动力学和稳定性非常重要。我的项目将侧重于研究旋转驱动的开尔文亥姆霍兹类不稳定性使用的分析方法和计算建模相结合。特别是，我们的目标是确定这些不稳定性发生的条件，并开发一个计算模型，可以扩展到未来的托卡马克。