Presidential Faculty Fellows Awards

总统教职研究员奖

• 批准号: 9553124
• 负责人: Noel Clemens
• 金额: $ 50万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-10-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9553124&HistoricalAwards=false
• 关键词: Presidential; Faculty; Fellows; Awards

Abstract Clemens CTS-9553124 The proposed effort centers on the fundamental studies of turbulence/flame and turbulence/diffusion interactions using planar laser diagnostics. Turbulence/reaction zone interactions, stabilization mechanisms in planar lifted flames, and differential diffusion in turbulent flows will be targeted for investigation. The studies will make use of laser imaging of flow field variables such as velocity, OH and CH radical concentrations, and fuel jet concentrations. Velocities will be measured using particle image velicometry (PIV) and species concentration using planar laser-induced fluorescence (PLIV). An emphasis will be placed on the simultaneous imaging of multiple flow variables such as velocity and OH (or CH), or two scalars with different mass diffusivities. Information will be forthcoming which will be important for the development and validation of turbulent reacting flow models which seek to predict combustion efficiency and atmospheric pollutant levels.

摘要 Clemens CTS-9553124 拟议的工作重点是使用平面激光诊断对湍流/火焰和湍流/扩散相互作用进行基础研究。 湍流/反应区相互作用、平面升焰中的稳定机制以及湍流中的差异扩散将成为研究的目标。 这些研究将利用流场变量的激光成像，例如速度、OH和CH自由基浓度以及燃料喷射浓度。 将使用粒子图像测速仪 (PIV) 测量速度，并使用平面激光诱导荧光 (PLIV) 测量物质浓度。 重点将放在多个流动变量的同时成像，例如速度和 OH（或 CH），或具有不同质量扩散率的两个标量。 即将发布的信息对于湍流反应流模型的开发和验证非常重要，该模型旨在预测燃烧效率和大气污染物水平。