人民黄河Issue(8)：101-102,105,3.DOI:10.3969/j.issn.1000-1379.2014.08.030
短喉堰自由出流流量系数试验研究
Experimental Research on Flow Coefficient Under the Conditions of Free Outflow for Short Throat Flume
单长河1
作者信息
- 1. 河北工程技术高等专科学校水利系，河北沧州061001
- 折叠
摘要
Abstract
The usage of short throat flume in measuring the flow is increasing in irrigation areas,but there is no proper and widely used calculation formula of flow coefficient under the conditions of free outflow. The experiment set up 3 kinds of experimental models of the ratio between the throat diameter and weir width,drew the relative experimental data under the conditions of free outflow,gave the monadic regressive analysis on free out-flow coefficient,got the relative empirical formula,and also carried out the error analysis on the results. The absolute value for the maximum rela-tive error was less than 2%,which met the accuracy requirements,and the empirical formula was reasonable.关键词
短喉堰/自由出流/经验公式/流量测量Key words
short throat flume/free outflow/empirical formula/flow measurement分类
建筑与水利引用本文复制引用
单长河..短喉堰自由出流流量系数试验研究[J].人民黄河,2014,(8):101-102,105,3.
