Portable central baffle flume

被引:0
|
作者
Bijankhan, Mohammad [1 ]
Teymourkhani, Ali [1 ]
Ferro, Vito [2 ]
机构
[1] Imam Khomeini Int Univ, Dept Water Engn, Qazvin, Iran
[2] Univ Palermo, Dept Agr Food & Forest Sci, Vials Dells Sci, I-90128 Palermo, Italy
来源
JOURNAL OF AGRICULTURAL ENGINEERING | 2022年 / 53卷 / 02期
关键词
Triangular central baffle flume; stage-discharge formula; Buckingham's theorem; incomplete self-similarity; submergence threshold; SURFACE-TENSION; VISCOSITY;
D O I
10.4081/jae.2022.1339
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
This paper investigated the hydraulic characteristics of the triangular central baffle (TCB) flume. Laboratory tests were carried out to determine the flume dimensions. The field applicability of the proposed portable device was examined by on-farm installation. According to the laboratory tests, when the contraction ratio, r, was less than 0.39, the flow capacity was not affected by the ratio between the flume's floor height and the throat width. The laboratory analysis also showed that there was no significant effect of installing an entrance ramp on the stage-discharge relationship for r <= 0.39, while the entrance ramp increased the dis- charge capacity for r>0.39. The stage-discharge curve obtained based on the laboratory tests was verified using field data. The results revealed that the proposed portable flume could be used accurately to determine the flow through an unlined ditch. Practical suggestions were proposed to determine the distinguishing condition curve.
引用
收藏
页数:11
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