Attention of Gas Phase Turbulence by Dispersed Particles

分散粒子对气相湍流的关注

• 批准号: 9312496
• 负责人: John Eaton
• 金额: $ 27.93万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-05-01 至 1997-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9312496&HistoricalAwards=false
• 关键词: Attention; Gas; Phase; Turbulence; Dispersed

9312496 Eaton Research on the interaction between fluid turbulence and particles embedded in the flow will be carried out, based on experiments and numerical modeling. It is a continuation of prior work in which turbulent channel flow was investigated. Now, a sharp area enlargement will induce separation. Correlations between turbulence structures and patterns of particle concentration will be obtained, focusing on the separated region. Flows with engineering relevance often contain regions of separation. In two phase particulate laden flows, particle-turbulence interaction in such regions is known to be important but essentially unexplored. ***

9312496伊顿研究将在实验和数值模拟的基础上，对流体湍流与嵌入在流动中的颗粒之间的相互作用进行研究。这是以前研究槽道湍流的工作的继续。现在，面积的急剧扩大将导致分裂。将获得湍流结构与颗粒浓度模式之间的关联，重点是分离区域。与工程相关的流动通常包含分离区域。在两相颗粒流中，这类区域的颗粒-湍流相互作用是重要的，但基本上还没有被研究过。***