溢洪道非定常工况水力特性的研究

Calculation and Research on the Hydraulic Characteristics of Spillway Under Unconstant Condition

用数值模拟方法 ,对岸边式溢洪道的引渠和泄槽段在开始泄洪、泄量调节和停止泄洪过程中的水力特性进行计算研究 ,这些非定常工况下的水力特性具有变化快、变幅大的特点 ,且受泄槽底坡、泄量大小、运行方式和时间等多种因素影响 .

This article calculates the hydraulic characteristics of banked spillway under different operation modes,such as discharging flood,adjusting flow and stopping discharge.Main work focuse on the delivery channel and discharge trough,using numeral model,shows prosperity of rapped change and great range of their hydraulic characteristics,and how they influenced by many facts,shch as bottom slope of discharge trough,value of flow,operating mode,time and so on.All of them should be considered completely for designing the height of spilway peripheral wall and operating it.