层析粒子图像测速技术研究进展  

Research advances of tomographic particle image velocimetry

作　　者：李晓辉 王宏伟[1] 黄湛[1] 赵俊波[1] LI Xiaohui;WANG Hongwei;HUANG Zhan;ZHAO Junbo(China Academy of Aerospace Aerodynamics,Beijing100074,China)

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《实验流体力学》2021年第1期86-96,共11页Journal of Experiments in Fluid Mechanics

摘　　要：层析粒子图像测速技术(Tomographic Particle Image Velocimetry,Tomo-PIV)作为一种瞬时的三维流场速度测量技术,能够为具有强非定常性及强三维空间性的复杂流动提供详细的数据支撑。对近年来该技术在国内外的发展及应用进行了全面的综述。首先介绍了层析粒子图像测速技术的工作原理和技术特点,进而探讨了当前层析粒子图像测速的研究现状,重点从相机布局、示踪粒子密度、标定映射函数及三维重构算法对重构精度的影响等方面进行了阐述,而后通过国内外关于层析粒子图像测速技术的典型应用,展示了该技术在非定常三维流动及工程应用中的优势。最后,对层析粒子图像测速技术的应用前景及发展趋势进行了展望。Tomographic Particle Image Velocimetry(Tomo-PIV)is an instantaneous three-dimensional velocity measurement technology which can provide detailed data support for complex flows with strong unsteady characteristics.A general review of the development and application of the technology at home and abroad is presented.The principle and characteristics of tomographic particle image velocimetry are introduced,and the current research situation is discussed,including especially the camera layout,particle density,calibration mapping function and 3D reconstruction algorithm.Then the typical application of Tomographic Particle Image Velocimetry is introduced,showing its advantages in the unsteady three-dimensional flow measurement and engineering applications.Finally,the application prospect and development trend of tomographic particle image velocimetry are discussed.

关 键 词：Tomo-PIV 三维流动 标定函数 三维重构 非定常流场 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]