RUI: Hydromagnetic Waves in a Thick Rotating Spherical Shell

这个项目的目的是模拟地球的外层 核心是一个厚的旋转球壳， 理想的恒定密度的导电流体， 基本的环形磁场 传播缓慢 该模型中的磁流体波将使用多个- 尺度渐近技术 该项目将强调 波的传播方向， 球面几何、陷波和不稳定性。 可能 地球磁场向西移的解释 将被寻求。

The purpose of this project is to model the Earth's outer core as a thick rotating spherical shell containing an inviscid, perfectly conducting fluid of constant density in the presence of a basic toroidal magnetic field. The propagation of slow hydromagnetic waves in this model is to be studied using multiple- scale asymptotic techniques. The project will emphasize the relationship between the direction of wave propagation, the spherical geometry, wave trapping and instability. Possible explanations for the westward drift of the Earth's magnetic field will be sought.