Engineering Research Equipment: Intensified CCD Camera for Supersonic Combustion Studies

一个增强的CCD（电荷耦合器件）相机将被 购买此设备补助金;最初，该系统 将致力于研究混合的实验， 超音速流动环境中的燃烧。 再加上 一个专用的脉冲染料激光系统，该设备将允许 非侵入式平面激光诱导荧光（PLIF）研究 浓度、速度、温度和压力 为基础研究设计的现有大型设施 超音速燃烧，首次允许非侵入式 的性质和机制的基本测量 可压缩环境中的混合和燃烧 广泛的流动条件。 这些结果将用于 与正在进行的数值模拟和 可压缩混合的开发和验证， 燃烧模型 超音速混合和燃烧过程是主要的 未来一代超音速/高超音速飞行器 推进系统。 有许多批评 与该燃烧模式相关的过程/问题; 流速的精确实验表征， 需要压力、温度和物种浓度 发展对这些现象的理解， 确定实现高效燃料的办法 在超音速燃烧条件下使用。 有 这一领域的许多悬而未决的问题， 是唯一适合调查的。

An intensified CCD (Charged Coupled Device) camera will be purchased with this equipment grant; initially, this system will be dedicated to experiments on the study of mixing and combustion in supersonic flow environments. When coupled with a dedicated pulsed dye-laser system, this equipment will allow non-intrusive Planar Laser-Induced Fluorescence (PLIF) studies of concentration, velocity, temperature and pressure in an existing large-scale facility designed for fundamental studies of supersonic combustion, allowing first-time non-intrusive fundamental measurements of the nature and mechanisms of mixing and combustion in compressible environments over a broad range of flow conditions. Such results will be used for comparison with ongoing numerical simulations and for development and validation of compressible mixing and combustion models. Supersonic mixing and combustion processes are of major interest for a future generation of supersonic/hypersonic propulsion systems. There are numerous critical processes/problems associated with this combustion mode; accurate experimental characterization of flow velocities, pressures, temperatures, and species concentrations are needed for development of an understanding of these phenomena and definition of approaches to achieving efficient fuel utilization under supersonic combustion conditions. There are numerous open questions in this area which this facility will be uniquely suited to investigate.