摘要
PIV是一种无扰动的二维流场测试技术。随着计算机技术、图像处理技术的快速发展 ,该技术近10年来有了长足的发展。详细阐述了PIV系统的结构与互相关分析原理 ,不但提供了在单向流实验中ADV与PIV的对比结果 ,而且提供了桩基码头模型时的涡流场分布 ,充分体现了PIV的实用价值。
PIV is an effective and non intrusive technique to measure the planar distribution of velocity in the fluid. With the fast development of PC and image processing,quite great progress of PIV has been made in the past 10 years.The structure of PIV and the theory of cross correlation is described in details. To show the validity of the system,the comparison between ADV and PIV under the conditions of single direction flow is provided and the velocity maps with vortex obtaied in the experimental study of flow in the wharf on piles as well.
出处
《水道港口》
2002年第1期42-45,共4页
Journal of Waterway and Harbor
