Research Initiation Award: A Study of Roughness-Induced Bypass Transistion

研究启动奖：粗糙度引起的旁路转变的研究

• 批准号: 9210436
• 负责人: Kenneth Breuer
• 金额: $ 10万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9210436&HistoricalAwards=false
• 关键词: Research; Initiation; Award; Study; Roughness

Funded through a Research Initiation Award, experimental and theoretical research will be carried out on the effect of boundary roughness on the transition of boundary layer flow to turbulence. The effect of both isolated and distributed roughness elements will be explored, in two and three dimensions. The focus is on a mechanism called Bypass Transition. The occurrence and cause of turbulence in engineering flow systems is widespread and still not sufficiently understood to permit reliable engineering predictions.

在研究启动奖的资助下，将对边界粗糙度对边界层流动向湍流过渡的影响进行实验和理论研究。孤立的和分布的粗糙度元素的影响将在二维和三维空间进行探讨。重点是一种称为旁路转换的机制。工程流动系统中湍流的发生和原因是广泛存在的，但仍然没有得到充分的了解，无法进行可靠的工程预测。