LDV 技术用于測量振动圆柱尾迹  

MEASUREMENTS IN TI-IE WAKE OF AN OSCILLATING CYLINDER WITH LDV TECHNIQUE

作　　者：夏雪湔[1] 沈熊 于和生[2] 于金风[2] 

机构地区：[1]北京航空航天大学 [2]清华大学

出　　处：《气动实验与测量控制》1989年第2期68-72,共5页

摘　　要：本文应用 LDV 技术在水槽中初步研究了静止和振动圆柱的尾迹特性。测量了尾迹中涡的脱落频率,振动圆柱与尾迹涡系统的频率锁定特性,静止及以锁定频率振动的圆柱尾迹中的平均速度和湍流度分布等,其结果与用热线技术测量的相符。The wake of stationary and oscillating circular cylinderwas investigated primarily in a water channel with LDV technique,Thevortex shedding frequency in the wake,phenomenon of“locking-in”,andthe distribution of mean velocity and turbulence in the wake of bothstationary and oscillating cylinder at frequency of“locking-in”weremeasured.The results were agreed with those measured by hot-wireteehnique:

关 键 词：LDV技术 圆柱 尾迹 流致振动 

分 类 号：O329[理学—一般力学与力学基础]