摘要
粒子成像测速（ＰＩＶ）作为一种流场测试的方法正受到越来越多的关注．其基本原理为测量流场中示踪粒子在一定时间间隔内的位移，从而获得流场速度的定量信息．对国内外关于ＰＩＶ技术在三维测量及信号处理技术方面的进展进行了综合研究．该技术有良好的发展前景，随着计算机技术和图像处理技术的发展．不仅能测试流场的瞬时流动特性，还可以完成与时间相关的流动特性测试，对现代流体力学的研究和发展，将有重要影响．
Particle image velocimetry (PIV) is an important method for flow field measurement. This method is based on seeding flow tracers in a flow field and extracting quantitative information about the velocity components by measuring their simultaneous displacements over a short interval of time. Some selected state of the art applications in 3-D measurement and alternative signal processing methods are reviewed. The trends for future developments of PIV are discussed in the paper.
出处
《石油大学学报（自然科学版）》
CSCD
1996年第3期103-108,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
