Effects of Pressure in Turbulent Reacting Flows

湍流反应流中压力的影响

• 批准号: 8414906
• 负责人: Warren Strahle
• 金额: $ 18.72万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-10-01 至 1989-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8414906&HistoricalAwards=false
• 关键词: Effects; Pressure; Turbulent; Reacting; Flows

Experiments and analysis are used in an investigation of some troublesome correlations between both velocity and species mass fraction against pressure gradient which occur in second order closure methods for turbulent reacting flows. Simultaneous two-point measurements are carried out for pressure, velocity, and density (and, equivalently, mass fraction and temperatures). A premixed turbulent flame facility is used for these measurements. The techniques of laser velocimetry and continuous Rayleigh molecular scattering are used along with dynamic Pitot barometry. Analysis consists of development of a new theory for the correlations in question and comparison with experiment. In addition, past models, heavily weighted by questionable incompressibility considerations, are compared with the experimental results.

用实验和分析方法研究了紊流反应流的二阶封闭方法中速度和物质质量分数对压力梯度的关系。同时对压力、速度和密度（以及质量分数和温度）进行两点测量。预混湍流火焰装置用于这些测量。激光测速技术和连续瑞利分子散射技术与动态皮托气压法同时应用。分析包括对所讨论的相关性提出新的理论并与实验进行比较。此外，将过去的模型与实验结果进行了比较，这些模型在不可压缩性考虑方面存在很大的问题。