Presidential Young Investigator Award: Turbulent Thermal Convection in Rotating and Stratefied Fluids

总统青年研究员奖：旋转和分层流体中的湍流热对流

• 批准号: 8657378
• 负责人: Harindra Joseph Fernando
• 金额: $ 26.82万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8657378&HistoricalAwards=false
• 关键词: Presidential; Young; Investigator; Award; Turbulent

The major emphasis of the research on mixing shear flows will be on the identification of mixing mechanisms for different Richardson-number regimes and the effect of internal-wave radiation on the energetics of the mixing process. The studies on mixing across diffusive interfaces surrounded by turbulent convecting layers will be a combination of theory and experiment, and will focus on the mechanisms responsible for determining the equilibrium interfacial-layer thickness and the buoyancy transfer at low stabilities. It is expected that the research on the formation of local mixed regions and their lateral spreading will shed light on the appropriate scaling parameters for the vertical size of turbulent patches and will provide understanding of their gravitational collapse process that is responsible for the formation of microstructure in stratified turbulent fluids.

混合剪切流研究的重点是 不同Richardson数混合机制的识别 制度和影响的内波辐射的能量学 混合过程。 扩散界面混合的研究 被湍流对流层包围的是 理论和实验，并将重点放在负责的机制， 确定平衡界面层厚度， 低稳定性下的浮力传递。 预计该研究 局部混合区的形成及其横向扩展 将阐明适当的缩放参数的垂直 湍流斑块的大小，并将提供他们的理解， 引力坍缩过程是形成 分层湍流流体中的微观结构。