摘要
借助U形渠道试验,利用指数公式对实测流速值进行分析。结果表明,指数公式可以很好地表示U形渠道横向流速分布规律。结合推导出的流速指数公式及流速-面积法,探索出了U形渠道流量计算公式,经实例验证,该公式误差较小。
This paper analyzes the observed data from lateral velocity measuring of open channel with U-shaped cross section by dint of exponential equation on the basis of experimentation.The results show that the exponential equation can express the lateral velocity distribution law of open channel with U-shaped cross-section.Combined the deducted velocity exponential distribution equation with velocity-area method,the discharge calculation formula for open channel with U-shaped cross-section is sought after.Case study shows that the error of the formula is small.
出处
《中国农村水利水电》
北大核心
2007年第10期61-64,共4页
China Rural Water and Hydropower
基金
国家十五重大科技专项(2002AA2Z4131)
关键词
U形渠道
流速分布
指数公式
测流技术
channel with U-shaped cross-section
velocity distribution
exponential equation
discharge measuring technique
