Light Scattering Studies of Fractal Soot Aggregates in Flames

这项提议的目的是开发静态和动态光散射技术，用于表征火焰中的分形煤烟聚集体。目前基于分形的烟尘颗粒光学性质的理论将被纳入提议的技术中。对烟尘团簇的几次静态散射/消光测量的结果将与从火焰中选择的烟尘团簇进行比较，并通过电子显微镜进行观察。光子相关光谱，这是索伦森博士在该项目期间将进一步开发的一种动态技术。该研究课题对科学家了解碳烟的形成和光散射诊断具有重要意义，并在燃烧和环境方面具有工程应用价值。

The objective of this proposal is to develop static and dynamic light scattering techniques for the characterization of fractal soot aggregates in flames. Current fractal-based theories for the optical properties of soot particles will be incorporated in the proposed techniques. The results from several static scattering/extinction measurements on soot clusters will be compared to soot clusters selected from flames and viewed by an electron micrograph. The Photon Correlation Spectroscopy, a dynamic technique to be further developed by Dr. Sorensen during this project. The research topic is important for scientist understanding of soot formation and of light scattering diagnostics, and has engineering applications in combustion and environment.