激光PIV流场显示与测量系统(英文)  

Laser PIV System Used for Flow Field Displaying and Measuring

作　　者：胡海豹[1] 鲍路瑶[1] 阮驰 孙传东[1] 白永林 

机构地区：[1]西北工业大学航海学院,西安710072 [2]中科院西安光精密机械研究所,西安710119

出　　处：《火力与指挥控制》2013年第2期111-115,119,共6页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(10672136,50835009)

摘　　要：利用课题组自行设计研制的一套粒子图像测速(PIV)系统对高速水洞中流场进行了测试研究。测试系统中,光源使用Nd:YAG调Q双激光器,其波长532 nm,脉冲时间8 ns,脉冲能量100 mJ;示踪粒子则采用直径200μm的镀银聚苯乙烯微球。无模型空流场测试结果表明,该系统对无模型空流场的测试误差小于1.3%;而通过圆球模型绕流流场测试结果与其理论值的对比发现,大部分测试流场区域的测试误差小于2%。A particle image velocimetry （PIV） system is set up by authors and their collaborators to measure the flow fields in the high-speed water tunnel. The two Q-switches YAG lasers with wavelength of 532 nm, pulse duration of 8 ns, pulse energy of 100mJ are used as the light source. Polystyrene tiny balls with silver coating, diameter of 200/.tm, are employed as tracer particles. The experimental resutls show that the detecting error in the non-model flow field is less than 1.3 %, and the error in the majority area of the detecting domain is less than 2 %.

关 键 词：激光成像 PIV 流场 水洞 

分 类 号：O357.5[理学—流体力学]