Corrugated bed hydraulic jump stilling basin

被引：0

作者：

Department of Hydraulic Structures, College of Water Science Engineering, Shahid Chamran University, Ahwaz, Iran ^{[1
]}

机构：

[1] Department of Hydraulic Structures, College of Water Science Engineering, Shahid Chamran University, Ahwaz

来源：

J. Appl. Sci. | 2007年 / 8卷 / 1164-1169期

关键词：

Corrugate; Energy dissipaters; Hydraulic jump; Open channel; Roughness; Stilling basin;

D O I：

10.3923/jas.2007.1164.1169

中图分类号：

学科分类号：

摘要：

Hydraulic jump stilling basins are used as an energy dissipater structures downstream of gates, spillways and weirs. In the present study the effect of trapezoidal shape corrugated bed on flow characteristics of hydraulic jump has been experimentally investigated. Total of 42 tests conducted in a flumes of 25 and 50 cm in width. Experimental were performed for wide range of Froude numbers ranging from 4 to 12. Six values of the relative roughness of corrugated shapes were studied. In all tests water surface profile and in 10 tests the vertical and the axial velocity profile were measured. From the analysis of data, the relative conjugate depths and the length of hydraulic jump were plotted against the Froude number. Comparison of these parameters with the same parameters in smooth bed hydraulic jump shows that the conjugate depth decreases 20% and the hydraulic jump length decreases 50%. These results show that corrugating the stilling bed can decrease the cost of stilling basin. © 2007 Asian Network for Scientific Information.

引用

页码：1164 / 1169

页数：5

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