Subject Area
Civil and Environmental Engineering
Article Type
Original Study
Abstract
Recently, both the free and the submerged flow through combined weir and gates were analyzed. But the flow in the zone between free and submerged flow has not analyzed yet. This paper presents the results of an experimental investigation to study the effect of varying tailwater depth on the characteristics of the combined flow over contracted sharp crested rectangular weirs and below contracted rectangular gates of sharp edges. The experiments were carried out in a flume using various geometrical dimensions under different flow conditions. The effects of both flow and geometrical parameters are discussed and presented in graphical form. The dimensional analysis principles were employed to correlate the combined discharge to the geometry and flow parameters. The experimental data were then used to develop a general non-dimensional equation for predicting the discharge through the combined notch knowing its geometry and the head of water over the weir. The predicted discharges agreed well with the experimental ones.
Recommended Citation
Al-Brahim, A.; Negm, A.; and Ibrahim, A.
(2021)
"Effect of Taildepth Variation on Combined Discharge over Weirs and below Gates.,"
Mansoura Engineering Journal: Vol. 25
:
Iss.
2
, Article 3.
Available at:
https://doi.org/10.21608/bfemu.2021.157957
