溢洪道加糙对水流流态影响的试验研究  

Experiment on effect of artificial roughness on water flow characteristic

作　　者：魏祖涛[1] 侍克斌[1] 陈成林[1] 杨恒阳[1] 

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052

出　　处：《水资源与水工程学报》2010年第5期76-78,共3页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(50969010)资助

摘　　要：溢洪道是水利枢纽中很重要的建筑物,为了确保在高速水流下泄槽内有较好的流态,设计上一般要求是直道,但有时候直道的开挖量太大或现有的地形条件不适合修建直道,所以在现实工程中难免要在泄槽段设计弯道。高速水流在进入弯道后的流态是很不好的,大部分水流集中在凹岸,水流撞击凹岸又冲到对岸的下游直道段,然后会在直道段内左右撞击边墙,流态很不稳定,因此要通过工程措施来稳定弯道内及其下游水流流态。The spillway is a very important structure in a hydro project.To ensure the stability of high velocity flow in the trench,so straight spillway is designed.However,excavation quantity and terrain condition are not suit for straight spillway to built,so that curved spillway is inevitable.The flow patterns of high velocity flow in curved spillway is bad because of the flow concentration in concave side of the bank then strike into the straight part of the spillway as well as the wall of that.So engineering measures are necessary to keep cueved spilway and downstream flow static.

关 键 词：溢洪道 泄槽 消能坎 弯道 水流流态 

分 类 号：TV651.1[水利工程—水利水电工程]