船闸输水系统流量系数计算方法分析  

Analysis of the calculation method for discharge coefficient of lock's filling and emptying system

作　　者：江耀祖[1] 吴英卓[1] 徐勤勤[1] 

机构地区：[1]长江科学院水工研究所,湖北武汉430010

出　　处：《长江科学院院报》2002年第5期55-57,共3页Journal of Changjiang River Scientific Research Institute

摘　　要：介绍了葛洲坝 1号船闸原型观测资料和模型试验数据。从两方面的实测资料发现“流量系数”接近 1.0或大于 1.0。分析了产生这一结果的原因 ,证明“流量系数”大于 1.0是成立的 ,但是这种“流量系统”的数值不能用来评价输水系统的优劣。应该指出 ,船闸中所指“流量系数”其实质是阀门断面流速系数。The prototype observation and model test data on the Gezhouba No.1 lock are presented, in which the 'discharge coefficients' in the information are approximate to or more than 1.0. The cause generating these results is analyzed. It is proved that the 'discharge coefficients' of more than 1.0 is tenable, but these 'discharge coefficients' can't be used to assess the good or bad of a kind of lock filling and emptying system. It is also pointed that the 'discharge coefficients' here is virtually the velocity coefficient of the culvert valve cross?section. The calculation method for real discharge coefficient of the culvert system is given.

关 键 词：葛洲坝船闸 输水系统 流速系数 流量系数 

分 类 号：U641[交通运输工程—船舶及航道工程]