表面PIV在潜航体兴波伴流场测量中的应用  

The application of surface PIV in the measurement of wave making of underwater moving body

作　　者：周文进[1] 蒋小勤[1] 王建中[1] 方频捷[1] 

机构地区：[1]海军工程大学理学院,湖北武汉430033

出　　处：《舰船科学技术》2016年第6期75-80,共6页Ship Science and Technology

基　　金：海军工程大学自然科学基金资助项目(HJGSK2014G122)

摘　　要：介绍潜航体兴波伴流场的表面PIV测量方法,对表面PIV的标定,示踪粒子的选择,背景干扰流场的消除方法以及表面PIV测量精度等问题开展分析讨论。实验表明:运用表面PIV技术可灵敏地探测到潜航体微弱的V型兴波伴流场,该兴波伴流场可以用潜航体的‘源-汇’效应解释。本文采用普通CCD数码摄像机以及普通光源摄取表面粒子图像,与传统的激光PIV设备相比,不仅经济而且使用方便,测量结果精确可靠,运用表面PIV技术测量表面微弱流场的精度可达0.01 pixel。This paper is mainly to introduce an experimental method for measuring wave making of underwater moving body by PIV. Apart from of analysing the principle of Surface-PIV, defining coordinate, and how to eliminate interference from background, the precision of Surface-PIV is also analysed in detail. Experiment show that ＇V＇ type wave and sourcesink effect are successfully detected. Comparing with the traditional PIV, Surface-PIV is not only economical and practicable under the laboratory conditions, but also accurate and reliable. Effective accuracy of Surface-PIV can reach 0.01 pixel.

关 键 词：潜航体 兴波伴流 表面PIV 

分 类 号：P714.3[天文地球—海洋科学] O353.2[理学—流体力学]