摘要
结合1:45水工模型试验,对双江口水电站溢洪道进口导墙体型进行了研究。试验通过改变导墙型式、长度和开口宽度分析了对进口水流流态及闸室泄流能力的影响。研究结果表明:溢洪道进口导墙采用直墙型式可基本消除闸室进口段产生严重的绕流现象及较大的水面波动;相较于圆弧型导墙,椭圆型导墙更适应水流流向;采用足够长度和开口宽度的椭圆型直墙型式能够使引渠内水流得到充分的调整,完全消除扰流现象,有效提高溢洪道的泄流能力。
Combined with the 1:45 hydraulic model test,the shape of the guide wall at the spillway inlet of Shuangjiangkou Hydropower Station is studied.By changing the type,length and opening width of the guide wall,the influence on the inlet flow pattern and the discharge capacity of the sluice chamber is analyzed.The results show that:the straight wall type at the inlet of spillway can basically eliminate the serious flow around the entrance of sluice chamber and the large fluctuation of water surface;the elliptical guide wall is more suitable for the flow direction than the circular guide wall;the elliptical straight wall type with sufficient length and opening width can fully adjust the flow in the approach channel,completely eliminate the flow disturbance,and effectively improve the discharge capacity of the spillway.
作者
王川
潘露
WANG Chuan;PAN Lu(Chengdu Engineering Co.,Ltd,Power China,Chengdu,Sichuan,610072;Sichuan Water Conservancy Vocational College,Chengdu,Sichuan,611231)
出处
《四川水力发电》
2020年第1期99-102,共4页
Sichuan Hydropower
关键词
溢洪道
模型设计
水流流态
流态优化
spillway
model design
flow pattern
flow pattern optimization
