【作者】 潘松； 王怀成； 李欣； 田新亮；

【Author】 PAN Song;WANG Huai-cheng;LI Xin;TIAN Xin-liang;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University;

【机构】 上海交通大学海洋工程国家重点实验室；

【摘要】 本研究描述了一种由重力驱使的直立式肥皂膜水洞装置,提供了一种模拟较高雷诺数下的二维水动力实验研究方法。此装置通过使用液体流量计,能够提供不同的稳定流速的实验条件。采用了几种典型钝体模型放置在水洞装置平行实验段,利用低压钠灯干涉法显示流场以及钝体尾流基本特征,并通过激光反射法测定模型所受的阻力大小。结果显示,实验能很清楚地揭示不同形状钝体尾流旋涡特征,并较好地实现对二维流场中钝体实际受力情况的实验测量。更多还原

【Abstract】 In this paper a gravity driven vertical soap film tunnel is described The soap film tunnel can provide a two-dimensional hydrodynamic experimental method at high Reynolds numbers.The device can provide different conditions of steady flow rate using liquid flowmeter.Several typical bluff body models were placed in the parallel section of the soap film.The basic characteristics of the flow wake were displayed by low pressure sodium lamp,which can show the interference fringes.The experimental results indicate that the wake vortices behind bluff bodies with different shapes can be clearly revealed,and the measurement of drag forces on bluff body in quasi-2 D flow field can be well realized.更多还原