不同堰型流量计算公式的初步分析

以标定的三角形薄壁堰作为测流控制条件,对矩形薄壁堰、WES实用堰、圆角宽顶堰和直角宽顶堰进行了测流试验,分别采用相应的堰流公式进行了计算和比较;结果表明:不同堰型堰流公式计算值各有差异,同一堰型采用不同经验公式求得的流量亦有所差别;将不同经验公式得出的流量和标准流量进行了比较并分析偏离程度,据此初步得出了不同堰型流量计算的推荐公式。

Analysis of Calculation Formula for Flow Rate of Different Kinds of Weirs

By taking marked triangle thin weirs as control condition for calculating flow rate, the experiments on measuring flow rate were conducted on rectangle thin weirs, WES practical weirs, circle cape wide top weirs and right angle wide top weirs, the corresponding calculation formula were used to calculate and compare their flow rat~ among the weirs respectively. The results show that the calculated data are different for different sorts of weirs by the formula, that the flow rate calculated by different experiential formula for the same weir is different, and that recommended calculating formula are initially arrived at for the flow rate of different sorts of weirs by comparing and analyzing the deviated degree of calculated flow rate through different experiential formula with standard flow rate.