南水北调中线总干渠水力响应时间特征研究  

Research on the Characteristic of Hydraulic Response Time of the Middle Route of the South-to-North Water Diversion Project

作　　者：张成[1] 贺莉[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《应用基础与工程科学学报》2009年第S1期28-36,共9页Journal of Basic Science and Engineering

基　　金：国家自然科学基金委员会创新群体研究基金项目(50221903)

摘　　要：波动传播时间和渠道平衡时间是南水北调中线工程总干渠运行控制所关心的重要内容.为研究上述典型水力响应时间的规律,本文利用南水北调中线电子渠道平台,对中线总干渠不同模拟工况进行了模拟计算,分析了渠道水力响应时间的变化特征.结果表明,节制闸开度变化引起的波动,其到达渠首和渠道末端的时间与节制闸所处的位置有较为密切的关系;而在相同的操作条件下,随着节制闸运用个数的增加,渠道重新达到平衡的时间会逐渐增加.研究成果对中线总干渠控制运行具有重要的参考价值.The propagation and stabilization time of water fluctuation of the middle route of the South-to-North Water Diversion Project(SNWDP) is an important concern for operation and control.Based on the digital chanel platform for the middle route of SNWDP,this paper simulated different operation conditions to study the regularity of the problems above.The characteristics of hydraulic response time were analyzed.The results showed that,the propagation time of water fluctuation caused by the check gates operation had close relationship with the location of the check gates;meanwhile in the operation conditions,the stabilization time became longer as the number of the check gates increased.This research provided important reference for the control and operation of the middle route of SNWDP.

关 键 词：南水北调 水力响应时间 数值模拟 节制闸 非恒定流 

分 类 号：TV68[水利工程—水利水电工程] TV133