悬栅水流流场测试及消能分析  

Measurement of velocity field around hanging-grid in slope channel and analysis of dissipation

作　　者：杨庆[1] 戴光清[1] 侯杰[2] 王海云[1] 

机构地区：[1]四川大学高速水力学国家重点实验室,四川成都610065 [2]新疆农业大学,新疆乌鲁木齐830052

出　　处：《水利水电技术》2004年第4期92-95,共4页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金资助项目(50069001).

摘　　要：陡坡弯道急流产生的折冲水流会对水利工程的安全运行产生严重后果,采用悬栅、悬板栅“消、导”结合较好地解决了陡坡弯道急流冲击波的控制问题.用多普勒激光测速系统对不同悬栅形式的附近流场进行了测试,分析了悬栅的消能效果.通过比较矩形栅条和工字钢栅条的优劣,得出了栅条在陡槽上的最小间距和水面高度.Supercritical shock wave was obviously improved with the application of hanging-grid&deflector plate in the steep channel.In the paper,Doppler-laser velocimeter was employed to measure the velocity field around hanging-grid.These mea-sured results will provide reliable basis for the mechanism of hanging-grid dissipation and the practical application.Between rectangular grid and I-shaped grid are copareed,and some significative outcomes are attained.

关 键 词：陡坡 悬栅 流场 消能 

分 类 号：TV65[水利工程—水利水电工程]