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发明公开
CN104897632A 一种基于扫描式平面激光诱导荧光成像系统测量瞬态燃烧场OH基浓度三维空间分布的方法 无效 - 驳回

一种基于扫描式平面激光诱导荧光成像系统测量瞬态燃烧场OH基浓度三维空间分布的方法
摘要：
本发明公开了一种基于扫描式平面激光诱导荧光成像系统测量瞬态燃烧场OH基浓度三维空间分布的方法，利用PLIF成像系统和瞬态燃烧场的OH基PLIF二维浓度测量技术，将得到的二维荧光图像进行软件上以及数学上的处理，即可得到燃烧场中二维PLIF图像中的OH基的浓度分布信息，再通过伺服扫描控制系统控制可转动的反射镜转动，对火焰所有剖面进行OH基浓度测量，进而确定整个湍流火焰组织中OH基浓度的瞬态三维空间分布，这就有效地解决了普通PLIF成像技术无法对瞬态火焰定量化和无法对整个火焰空间结构进行三维成像的问题。本发明可广泛应用于各种流场和燃烧过程中各种组分的诊断，为燃烧学、计算流体动力学以及燃烧诊断技术的研究提供基础实验数据。
摘要（英）：

The invention discloses a method for measuring three-dimensional spatial distribution of OH group concentration in a transient combustion field based on a scanning planar laser induced fluorescence imaging system. The method comprises the following steps: by virtue of a planar laser induced fluorescence (PLIF) imaging system and a PLIF two-dimensional concentration measurement technology of an OH group, processing the obtained two-dimensional fluorescence image in software and math to obtain the concentration distribution information of the OH group in the two-dimensional PLIF image in the combustion field; controlling a rotatable reflector to rotate through a servo scanning control system; and carrying out concentration measurement of the OH group on all profiles of a flame, so as to determine the transient three-dimensional spatial distribution of the OH group concentration in the overall turbulent flame tissue, so that the problems that transient flame quantification cannot be carried out and the overall flame space structure cannot be subjected to three-dimensional imaging by a common PLIF imaging technology are effectively solved. The method can be widely applied to diagnosis of various flow fields and various components in the combustion process; and basic experiment data are provided for research on the combustion science, the computational fluid dynamics and the combustion diagnostics.

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