Upstream vortices of a sluice gate: An experimental and numerical study

Abstract

This paper aims to explore the effects of a sill under a standard sluice gate on the development of the intake vortices. In total, 200 experiments were carried out. Sills with different shapes and widths were considered both numerical and experimentally. Results indicated that using a sill changes the flow depth and upstream pressure. Using a silled gate causes a decrease in the amount of air entering the fluid. By increasing the sill width, the vortex intensity reduces and this reduction is further amplified by increasing the approach discharge. The experimental findings are also compared to the results from the numerical model Flow-3D with interesting agreements.

Numerical simulation of supercritical flow in sudden contractions flumes

“…The design of channels downstream of hydraulic structures is very important to control hydraulic jumps (Ead & Rajaratnam 2002;Harrison 2015;Abbaszadeh et al 2023;Norouzi et al 2023). Chutes are one of the useful structures to reduce the energy downstream (Chinnarasri & Wongwises 2006).…”