Discharge Coefficient of Triangular and Asymmetric Labyrinth Side Weirs Using the Nonlinear PLS Method

被引：9

作者：

Parvaneh, Ali ^{[1
]}

Kabiri-Samani, Abdorreza ^{[2
]}

Nekooie, Mohammad Ali ^{[3
]}

机构：

[1] Sharif Univ Technol, Dept Civil Engn, Tehran 113659313, Iran

[2] Isfahan Univ Technol, Dept Civil Engn, Esfahan 8415683111, Iran

[3] Malek Ashtar Univ Technol, Dept Emergency Management, Tehran 177415875, Iran

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 2016年 / 142卷 / 11期

关键词：

Side weir; Discharge coefficient; Partial least-squares (PLS) method; Empirical equations; SUBCRITICAL FLOW; STRAIGHT CHANNEL; FREE-SURFACE; CAPACITY;

D O I：

10.1061/(ASCE)IR.1943-4774.0001081

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Side weirs are hydraulic control structures widely used in irrigation and drainage systems as well as wastewater treatment plants. These structures also serve as adjusting/diverting flow structures with a minimum head loss. In the present study, by applying experimental data of more than 400 laboratory tests and using the multivariable nonlinear partial least-squares (PLS) method, three nonlinear equations are proposed for discharge coefficient, CM, of triangular and asymmetric labyrinth side weirs. These equations relate the discharge coefficient to the relevant geometrical and hydraulic dimensionless characteristics of flow. Results indicate that the new proposed equations are more accurate compared to those of former studies, being the best tools to estimate the diverted flow discharge over the side weirs. (C) 2016 American Society of Civil Engineers.

引用

页数：7

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