Gate Lip Hydraulics under Sluice Gate

Ahmed Y. Mohammed, Moayed S. Khaleel

Department of Dam and Water Resources, College of Electronic Engineering, University of Mosul, Mosul, Iraq.

DOI: 10.4236/mi.2013.21003                

Abstract

This paper present the effect of the lower gate lip on the coefficient of contraction, velocity and discharge which have been made in a rectangular flume with four gates opening from (2 to 4.5) cm, five different discharges from (6.2 to 18.15) l/s and five different gate cases (vertical and inclined vertically) by angle (45)° with and opposite flow direction with horizontal and sharp lower lip. The values of coefficients of contraction (C_c) and discharge (C_d) increases when gate slope increases with flow direction and the lower lip is horizontal, these increases are (16)% and (18)% respecttively, while these values decreases when gate slope increases opposite flow direction and the lower lip is horizontal these decreases are (13)% and (11)% respectively. The values of coefficient of velocity (C_v) remain constant and don’t effect with changes of gate slope or gate lip.

Keywords

Sluice Gate; Coefficient of Contraction; Coefficient of Velocity; Coefficient of Discharge

Conflicts of Interest

The authors declare no conflicts of interest.

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