您的位置:首页  > 论文页面

带明流隧洞的泵站输水系统断流过渡过程研究

发表时间:2014-07-31  浏览量:1597  下载量:621
全部作者: 陶丹,王玲,王福军
作者单位: 中国农业大学水利与土木工程工程学院
摘 要: 研究以某输水工程为例,探讨隧洞无压输水过程中可能出现的瞬间断流问题的两种处理方法。研究发现,虚拟流动法(virtual flow method,VFM)和近似处理法(approximation flow method,AFM)均可以用于评估明渠断流问题。VFM计算精度高,但需选择较为合理的初始流量;AFM计算简单,但有时可能无法得到某些位置的水力瞬变特性。对于给定的工程算例,计算了在水泵启动、事故断电等工况下的隧洞水力瞬变。
关 键 词: 水力机械;隧洞;过渡过程;断流;算法
Title: Research on transient process of pumping station system with tunnel
Author: TAO Dan, WANG Ling, WANG Fujun
Organization: College of Water Resources and Civil Engineering, China Agricultural University
Abstract: In this paper, two algorighms using to deal with the flow interruption in the hydraulic transition process of a water transfer project with tunnel are investigated. The results show that both virtual flow method (VFM) and approximation flow method (AFM) can be used in the evaluation of open channel flow with flow interruption. VFM conducts high precision results, but needs reasonable initial flow rate input. AFM is simple in calculation, but sometimes can not supply characteristics of hydraulic transients for some special positions. For a given engineering example, the hydraulic transient processes of tunnel under pump start and power failure conditions are analysed.
Key words: hydraulic machinery; tunnel; hydraulic transient; flow interruption; algorithm
发表期数: 2014年7月第14期
引用格式: 陶丹,王玲,王福军. 带明流隧洞的泵站输水系统断流过渡过程研究[J]. 中国科技论文在线精品论文,2014,7(14):1454-1460.
 
0 评论数 0
暂无评论
友情链接