Numerical Investigation on Effective Parameters on Hydraulic Flows in a Sluice Gate with Sill on Free-Flow Condition

Daneshfaraz, Rasoul; Norouzi, Reza; Ebadzadeh, Parisa; Abbaszadeh, Hamidreza

doi:10.22034/jewe.2021.295538.1596

Document Type : Research Paper

Authors

¹ Professor, Department of Civil Engineering, Faculty of Engineering, University of Maragheh, Maragheh, Iran

² PhD Alumni, Department of Water Engineering, Faculty of Agriculture, University of Tabriz, Tabriz, Iran

³ M.Sc. Student, Department of Civil Engineering, Faculty of Engineering, University of Maragheh, Maragheh, Iran

https://doi.org/10.22034/jewe.2021.295538.1596

Abstract

The presence of a sill under the sluice gate is one of the solutions to control the flow rate. This study was conducted to numerically investigate the discharge coefficient (C_d) of sluice gates with different heights and widths of sills in free flow conditions. The simulations were performed using FLOW-3D software. Results show that C_d increases as the gate opening decreases. Also, results showed that reducing the gate opening from 5 cm to 2 cm increases the C_d in the gate with sill by 9% compared to the non-sill gate. Discharge coefficients with 1 cm and 4 cm sills, compared to the non-sill condition were estimated at 1.5% and 18%, respectively. Examination of sill width changes showed that decreasing the width reduces the discharge coefficient by reducing the amount of velocity and flow pressure along the sill sides. The effects of three parameters of the gate opening, sill height, and sill width were compared. The results showed that increasing the sill width compared to the two mentioned parameters has the maximum increase in the C_d.

Keywords

Main Subjects

water structures

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Environment and Water Engineering

Numerical Investigation on Effective Parameters on Hydraulic Flows in a Sluice Gate with Sill on Free-Flow Condition

References

References

Volume 8, Issue 3
September 2022
Pages 711-725

Numerical Investigation on Effective Parameters on Hydraulic Flows in a Sluice Gate with Sill on Free-Flow Condition

References

References

Volume 8, Issue 3September 2022Pages 711-725

Volume 8, Issue 3
September 2022
Pages 711-725