梯形加糙渠道岸边流速系数的探讨  

Study on Shore Velocity Coefficient of Trapezoidal Roughened Channel

作　　者：欧祖贤 聂会冲 刘克浩 王瑾 OU Zu-xian;NIE Hui-chong;LIU Ke-hao;WANG Jin(Hebei Engineering University,Water Conservancy and Hydropower College,Handan 056000,Hebei,China)

机构地区：[1]河北工程大学水利水电学院,河北邯郸056000

出　　处：《水利科技与经济》2021年第3期34-38,共5页Water Conservancy Science and Technology and Economy

基　　金：排洪建筑物应急抢险快速修复关键技术与装备研究(课题编号:2017YFC0405004)。

摘　　要：岸边流速系数的取值,对渠道流量的计算精度影响很大,但目前对加糙后的渠道岸边流速系数研究还较少。通过对梯形渠道壁面加糙,对渠道岸边流速系数进行初步推求和影响因素分析,并为岸边流速系数的选值提供建议。The value of shore velocity coefficient has great influence on the calculation accuracy of channel flow.However,there are few researches on the velocity coefficient of channel shore after roughening.In this paper,by roughening the wall surface of trapezoidal channel,the velocity coefficient of channel shore is deduced and the influencing factors are analyzed.Suggestions are provided for the selection of shore velocity coefficient.

关 键 词：岸边流速系数 加糙 梯形渠道 

分 类 号：P332[天文地球—水文科学]