Fluid Dynamics - understanding fluid dynamics to improve our lives

流体动力学 - 了解流体动力学以改善我们的生活

• 批准号: 2882646
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2882646
• 关键词: Fluid; Dynamics; understanding; fluid; dynamics

Rotating convection is of fundamental importance in the dynamics of planetary interiors and in the formation of the large-scale vortices observed at the poles. Most work on this problem has focused on the case of a plane layer of non-magnetic fluid in the Boussinesq regime. However, considering the radial variations of the electrical conductivity in Jupiter's interior in relation to the depth of the vortices observed, the effect of magnetic fields on their formation and evolution remains unclear at large magnetic Reynolds numbers.One aspect of the project will consist in exploring the role magnetic fields and stratification, in the anelastic regime, on the onset of thermal convection for rapidly rotating systems. The PGR will also investigate computationally the effect of weak magnetic fields at large magnetic Reynolds numbers on the formation and evolution of large-scale vortices. The computation will start with two sets of initial conditions: either convectively unstable atmospheres a rest or fully formed large-scale vortices emerging from turbulent rotating thermal convection in absence of magnetic fields.

旋转对流在行星内部的动力学和在两极观察到的大尺度涡旋的形成中具有根本的重要性。关于这个问题的大多数工作都集中在Boussinesq制度中的非磁性流体的平面层的情况下。然而，考虑到在木星内部的电导率的径向变化的深度观察到的漩涡，磁场对其形成和演变的影响仍然不清楚在大磁Reynoldsnumbers.One方面的项目将包括在探索的作用磁场和分层，在滞弹性制度，对发病的热对流快速旋转系统。PGR还将通过计算研究大磁雷诺数下弱磁场对大尺度涡旋形成和演化的影响。计算将从两组初始条件开始：要么是对流不稳定的大气静止，要么是在没有磁场的情况下从湍流旋转热对流中出现的完全形成的大尺度涡旋。