摆动柔性鳍尾涡流场的实验测试与分析  

Experimental measurement and analysis on the wake vortex of oscillating flexible caudal fin

作　　者：老轶佳[1] 王志东[1] 张振山[1] 李力军[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《水动力学研究与进展（A辑）》2009年第1期106-112,共7页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金资助项目(50879031);江苏省高校自然科学基础研究项目(07KJB580031)

摘　　要：利用数字式粒子图像测速系统(DPIV)开展了摆动柔性鳍的尾流场测试,分析了尾涡结构的演变过程。柔性尾鳍在一个摆动周期内产生两个反向卡门涡对。本文给出了沿涡对连线及其垂直方向上的速度分布,计算了涡对的速度环量,并初步构建出柔性尾鳍流场中的三维涡环模型。An experiment of the wake vortex produced by a flexible oscillating caudal fin by using DPIV was conducted. The evolutionary process of trailing＇vortex structure was analyzed. Two inverse Karman vortex pairs emerge during a period of oscillating. This paper also presents the velocity distributions of the radial component and the component orthogonal to radial direction, and the calculated circulation. Finally, a primarily model of 3D vortex ring is proposed.

关 键 词：DPIV 柔性鳍 流场 尾涡 

分 类 号：TV131.4[水利工程—水力学及河流动力学]