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.

旋转的流体本质上是无处不在的，从行星岩心和气态行星到吸积盘。每个这样的系统都支持一个丰富的波浪家族 - 称为惯性波 - 如果旋转流动受到干扰，它们会变得兴奋。现在，在各种情况下，这种最初的兴奋已经相对众所周知，但是当海浪随着生长而开始与自己互动时会发生什么。最近，已经发现了一些新型的不稳定类型，这些不稳定描述了波浪如何相互作用。该博士学位项目将探讨如何使用这些项目来更新弱波湍流近似。