Improving the Inertial Wave Turbulence approximation

改进惯性波湍流近似

• 批准号: 2436715
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2436715
• 关键词: Improving; Inertial; Wave; Turbulence; approximation

Rotating fluids are ubiquitous in nature ranging from planetary cores and gaseous planets to accretion disks. Each such system supports a rich family of waves - called inertial waves - which become excited if the rotating flow is disturbed. This initial excitement is now relatively well understood in a variety of situations but what happens when the waves start to interact with themselves as they grow is not. Recently a few new types of instability have come to light which describe how the waves can interact. This PhD project will explore how these can be used to update a weak wave turbulence approximation.

旋转流体在自然界中无处不在，从行星核和气态行星到吸积盘。每一个这样的系统都支持一个丰富的波族--称为惯性波--如果旋转流受到扰动，惯性波就会被激发。这种最初的兴奋现在在各种情况下都得到了比较好的理解，但当波开始与它们自己相互作用时，当它们成长时，会发生什么却不是。最近，几种新的不稳定性类型被发现，它们描述了波如何相互作用。这个博士项目将探索如何使用这些来更新弱波湍流近似。