Geometry of wall-turbulence and its potential to advance scalable models

壁湍流的几何形状及其推进可扩展模型的潜力

• 批准号: DP170103464
• 负责人: Prof Joseph Klewicki
• 金额: $ 19.66万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-05-01 至 2020-04-30
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP170103464
• 关键词: Geometry; wall; turbulence; its; potential

This project aims to unravel the connections between the statistical geometry of wall-turbulence and the dynamical interactions of its instantaneous motions. Predicting the complex behaviour of turbulent fluid flow over surfaces in relative motion is central to atmospheric modelling for climate and agriculture, and reducing the environmental effect of fossil fuel usage. Wall-turbulence statistics organise according to a predictable geometric structure, and the notorious complexity of turbulent wall-flow dynamics could be clarified through its inherent geometry. This project expects to construct a basis for predicting engineering and atmospheric wall-flows, which would enhance atmospheric flow prediction, reduce energy consumption and further environmental sustainability.

本计画的目的在于揭示壁湍流的统计几何与其瞬时运动的动力学相互作用之间的关系。预测相对运动表面上湍流流动的复杂行为是气候和农业大气建模的核心，并减少化石燃料使用的环境影响。壁湍流统计根据可预测的几何结构组织，并且湍流壁流动力学的臭名昭著的复杂性可以通过其固有的几何结构来澄清。该项目预计将为预测工程和大气壁流奠定基础，这将加强大气流动预测，降低能源消耗，促进环境可持续性。