水流空心涡带流场的PIV测试与分析

Test of flow inside hydraulic vortex core using PIV techniques and its analysis

采用PIV激光内流测试技术 ,在实验室内对水流的空心涡带的实验测量方法进行研究 ,主要介绍对轴向面上的流动测量 ,对涡带附近测得的数据采用特殊处理方法 ,该方法能够有效测出水流运动的速度场分布 ,为水力机械涡带内流PIV测试提供依据 .

This paper introduced the researches on hydraulic vortex in laboratory by using PIV internal flow testing technique, the method of measuring the velocity on axial sections, and the special method of processing data near the vortex zone. By using this method, velocity field distribution of fluid can be measured and the PIV internal flow testing technique on hydraulic vortex was proved.