PIV在横流中的湍射流实验研究中的应用  

Study on round turbulent jet in a cross flow with PIV

作　　者：姜国强[1] 张晓元[1] 李炜[1] 

机构地区：[1]武汉大学水利水电学院,湖北武汉430072

出　　处：《水科学进展》2002年第5期588-593,共6页Advances in Water Science

基　　金：国家自然科学基金资助项目 (5 99790 2 2 )~~

摘　　要：利用粒子图象测速技术 (PIV) ,对横流中具有复杂结构流动的湍射流进行了详细观测。实验给出了射流沿程发展情况和由断面最大流速连线形成的轨迹线方程 ,研究中还发现射流尾迹区中的大尺度结构与圆柱绕流有很大区别。A particle image velocimetry (PIV) is used to measure and visualize the flow of a jet directed normal to a uniform and steady cross flow, there is a complex interaction between the two flows.The development and the trajectory of jet are given by the experimental data.The visualization of wake structure shows the significant differences between the jet and the cylinder as obstacles to the cross flow.

关 键 词：PIV 横流 湍射流 粒子图象测速 轨迹线 附着涡 

分 类 号：TV131.21[水利工程—水力学及河流动力学]