复杂燃烧场OH-PLIF诊断关键技术研究

项目名称： 复杂燃烧场OH-PLIF诊断关键技术研究

项目编号： No.11272338

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 陈爽

作者单位： 中国空气动力研究与发展中心

项目金额： 78万元

中文摘要： 平面激光诱导荧光(PLIF)技术是燃烧场诊断的重要方法和有效手段，因其测量信息丰富、非接触无扰动、高时空分辨率、直观可视等优点，迅速在燃烧学领域的众多研究方向上展示出了广阔的应用前景。根据航空发动机和超音速燃烧冲压发动机等重要研究项目中复杂燃烧场诊断的需要，本项目拟从理论计算和实验技术研究出发对OH-PLIF技术进行基础性研究，设计制作能够模拟测量环境和工况的高压火焰炉用于荧光标定，开发和搭建双激发PLIF系统，优化测量方法，解决复杂流场条件下OH自由基浓度定量测量和燃烧场瞬态测温的技术难点，提升国内燃烧场诊断的水平和能力，为航空发动机和超燃冲压发动机研究提供高精度的测量手段。

中文关键词： 激光诱导荧光；OH；燃烧诊断；复杂燃烧场；吸收光谱

英文摘要： Planar Laser-Induced Fluorescence (PLIF) is important and useful for combustion diagnostics because of its excellent characteristics such as powerful measurement, no intrusion, high resolving power and visualization. In the firebox of aero engine and scramjet the flame and flow are complex. Further, the fluorescence of OH become weaker and different by quenching with high pressure and temperature. In order to build a set of useful OH-PLIF system for complex flame, we will study the theory of PLIF and analyze the spectroscopy of the OH-molecule with high pressure. We will build a high pressure gaseous burner for calibrating the fluorescence image to measure the absolute concentration of OH in the flame quantificationally. The two pulse PLIF system will be set up and used to measure the 2-D temperature field. This project will increase the ability and level of combustion diagnostics. The precise instrument will be helpful for the research on aero engine and scramjet.

英文关键词： laser induced fluorescence；OH；combustion diagnostics；complex combustion field；absorption spectroscopy