Engineering Research Equipment Grants: Flash Pumped Dye Laser for Combustion Diagnostics

闪光灯泵浦的可调谐染料激光器和激光波长计将用于在目前正在进行或正在建设的各种燃烧研究项目中进行拉曼、瑞利和荧光散射实验。这些问题包括：在亚音速和超音速湍流反应流中偏离化学平衡；边界层静止和传播的湍流火焰；以及往复式发动机燃烧。这些研究项目旨在提供与化石燃料能源转换、空气污染、推进和消防安全相关的燃烧过程的了解。所有这些项目都需要一种光学诊断系统，能够提供关于反应区的密度、温度和主要物质浓度以及流速的信息。预计可调谐染料激光器和激光波长计将为这些燃烧问题的分析提供有价值的数据。

A flashlamp pumped tunable dye laser and a laser wavelength meter will be used to conduct Raman, Rayleigh and Fluorescence scattering experiments in a wide range of combustion research projects which are currently underway, or that are under construction. These include: departure from chemical equilibrium in subsonic and supersonic turbulent reacting flows; boundary layer stationary and propagating turbulent flames; and reciprocating engine combustion. These research projects are aimed at providing understanding of combustion processes related to fossil fuel energy conversion, air pollution, propulsion, and fire safety. All these projects share the need of an optical diagnostics system capable of providing information about the density, temperature and major species concentrations in the reaction zone, as well as flow velocity. It is anticipated that the tunable dye laser and the laser wavelength meter will provide valuable data for the analysis of these combustion problems.