Mathematical Sciences: Instabilities and Pattern Formation in Flames

数学科学：火焰中的不稳定性和模式形成

• 批准号: 9104029
• 负责人: Moshe Matalon
• 金额: $ 12万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9104029&HistoricalAwards=false
• 关键词: Mathematical; Sciences; Instabilities; Pattern; Formation

The project is concerned with problems of flame propagation in nonuniform flow fields and in confined environments. The investigator will derive and analyze appropriate mathematical models and will study the dynamics of flames in such configurations. The methods to be used are asymptotic and perturbation techniques combined with numerical computations. The primary goal is to construct solutions that permit a fundamental understanding of the relevant physical mechanisms involved in these processes and to enable qualitative comparison with experimental observations. Combustion in closed vessels is a commonly encountered problem, but it is not well understood. The results of this project will provide a better picture of the physics involved and can be used to validate numerical simulations of confined combustion.

该项目涉及火焰在非均匀流场和受限环境中的传播问题。研究人员将推导和分析适当的数学模型，并研究这种结构中的火焰动力学。所使用的方法是渐近和摄动技术与数值计算相结合。主要目标是构建解决方案，使人们能够从根本上了解这些过程中涉及的相关物理机制，并能够与实验观察进行定性比较。密闭容器中的燃烧是一个常见的问题，但人们对此还没有很好的了解。该项目的结果将提供更好的物理图像，并可用于验证受限燃烧的数值模拟。