孙斌,朱顺,杨磊,张超,石喜

• 1:郑州大学水利科学与工程学院
• 2:兰州交通大学土木工程学院

摘要(Abstract)：

为探究无喉道量水槽在不同坡度渠道的适用性,解析影响无喉道量水槽水力特性的因素,本文在模型试验的基础上,通过数值模拟软件对过槽水流进行了三维数值模拟,分析了水面线、壅水高度、佛汝德数的沿程变化及测流公式。研究结果表明,数值计算结果能够较好地表征出模型试验相关水力特性,模拟水面线结果与实测结果基本一致;基于能量守恒原理和量纲分析推出水位流量关系式,进一步拟合数据,得到了适应于不同坡度的测流公式,平均计算误差均小于5%,满足测量要求;收缩比对佛汝德数和壅水高度影响显著,当流量不变时,佛汝德数随收缩比的增大而增大,壅水高度随收缩比的减小而增大。该研究可为灌区无喉道量水槽量的应用提供一定的参考依据。

关键词(KeyWords)： 矩形渠道;明渠量水;无喉道量水槽;测流公式

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51909242,52009125)

作者(Author): 孙斌,朱顺,杨磊,张超,石喜

DOI: 10.13928/j.cnki.wrahe.2021.04.011

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