河南水利与南水北调2024，Vol.53Issue(3)：77-78,2.
前坪水库导流隧洞下游消力池水力特性研究
Study on Hydraulic Characteristics of Stilling Pool Downstream of Diversion Tunnel of Qianping Reservoir
摘要
Abstract
The hydraulic characteristics of diversion tunnel,such as discharge capacity,velocity and water surface line are studied by 1:90 normal physical model test in this paper.The influence of the size of the downstream outlet stilling pool on the efficiency was studied.The results show that the discharge capacity of diversion tunnel of Qianping Reservoir meets the requirements under the two characteristic working conditions.Reducing the length of stilling pool has no effect on the discharge capacity of diversion tunnel.At the same time,the state of the hydraulic jump changes from vibrating hydraulic jump to stable hydraulic jump.The efficiency effect has been significantly improved.The downstream bend and tail channel flow pattern are improved.The project investment is also reduced.The research results provide a reliable theoretical basis for engineering design and safe operation.关键词
水力特性/消力池/流速,效能率Key words
hydraulic characteristic/stilling pool/flow velocity/efficiency rate分类
建筑与水利引用本文复制引用
苏晓玉,李松平,王源,袁吉娜,苏保印,潘琨..前坪水库导流隧洞下游消力池水力特性研究[J].河南水利与南水北调,2024,53(3):77-78,2.基金项目
河南省水利科技攻关计划项目(GG202117) （GG202117）
