Entrainment and interface dynamics of turbulent flows

湍流的夹带和界面动力学

• 批准号: DE150100985
• 负责人: A/Prof Jimmy Philip
• 金额: $ 26.91万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE150100985
• 关键词: Entrainment; interface; dynamics; turbulent; flows

Patches of turbulent flow such as in clouds, volcanic or bushfire plumes grow with time because they draw or entrain non-turbulent fluid through their boundaries. The quantity of fluid entrained, and why it entrains this amount, is poorly understood. This is a major bottleneck in our ability to predict how these natural phenomena evolve in time. This project aims to employ idealised laboratory models of these natural phenomena, and utilise high quality measurement techniques and theoretical tools to quantify and understand the physical basis of the entrainment mechanism. The project aims to create better climate models and more accurate predictions of natural disasters associated with bushfires and volcanos.

云、火山或森林大火中的湍流随着时间的推移而增长，因为它们吸引或夹带了非湍流的流体通过它们的边界。夹带的液体量，以及为什么夹带这么多的液体，人们知之甚少。这是我们预测这些自然现象如何随时间演变的一个主要瓶颈。该项目旨在采用这些自然现象的理想实验室模型，并利用高质量的测量技术和理论工具来量化和理解夹带机制的物理基础。该项目旨在建立更好的气候模型，并更准确地预测与森林大火和火山有关的自然灾害。