Aerosol Fractal Aggregate Optics and Kinetics in Laminar and Turbulent Flows

该项目涉及气溶胶聚集体的光散射和吸收测量，作为颗粒尺寸和衍射指数的函数。 在不同的克努森制度的动态团聚将被测量和评估。 分形光学和动力学实验将与现有的理论和P.I. 将发展一种用于非定常流中颗粒和聚集体的尺寸和形态的多角度光学诊断技术，并将其应用于火焰中的湍流。 如果成功的话，这项研究将提供更好的了解气溶胶聚集机制，光散射和吸收过程的聚集体，和一个新的仪器来测量聚集体的大小和组成的湍流。 应用范围从空气污染研究中的烟灰形成到火焰反应器中的粉末合成。

This project involves light scattering and absorbtion measurements on aerosol agglomerates as a function of particle size and diffraction indices. The dynamics of agglomeration at various Knudsen regimes will be measured and evaluated. The fractal optics and kinetics experiments will be compared with existing theories and a new model proposed by the P.I. A multi-angle optical diagnostic technique for size and morphology of particle and aggregate in unsteady flows will be developed, with application to turbulent flows in flames. If successful, the study will provide better understanding of the aerosol aggregation mechanisms, of light scattering and absorption processes from aggregates, and a new instrument to measure the aggregate size and composition in turbulent flows. Application range from soot formation in air pollution studies to powders synthesis in flame reactors.