Sill Role Effect on the Flow Characteristics (Experimental and Regression Model Analytical)

This study investigates the effects of gate openings and different sill widths on the sluice gate’s energy dissipation and discharge coefficient (Cd). The physical model of the sills includes rectangular sills of different dimensions. The results show that the gate opening size is inversely related...

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Bibliographic Details
Published in:Fluids (Basel) 2023-08, Vol.8 (8), p.235
Main Authors: Abbaszadeh, Hamidreza, Norouzi, Reza, Sume, Veli, Kuriqi, Alban, Daneshfaraz, Rasoul, Abraham, John
Format: Article
Language:English
Subjects:
Design
Dimensional analysis
Discharge coefficient
Energy dissipation
Experiments
Flow characteristics
Froude number
gate
hydraulic jump
Hydraulics
Mechanical properties
Polynomials
Regression analysis
Regression models
Reynolds number
sill role
Sluice gates
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Summary:This study investigates the effects of gate openings and different sill widths on the sluice gate’s energy dissipation and discharge coefficient (Cd). The physical model of the sills includes rectangular sills of different dimensions. The results show that the gate opening size is inversely related to the Cd for a gate without a sill. In addition, increasing the gate opening size for a given discharge decreases the relative energy dissipation, and increasing the Froude number increases the relative energy dissipation. The results also show that the Cd and relative energy dissipation decrease when the width of the sill is decreased, thus increasing the total area of the flux flowing through the sluice gate and vice versa. According to the experimental results, the relative energy dissipation and the Cd of the sluice gate are larger for all sill widths than without the sill. Finally, non-linear polynomial relationships are presented based on dimensionless parameters for predicting the relative energy dissipation and outflow coefficient.
ISSN:2311-5521
2311-5521
DOI:10.3390/fluids8080235