|
|
|
|
|
Bojan Milovanovic, Predrag Vojt, Budo Zindovic, Vladan Kuzmanovic and Ljubodrag Savic
This paper presents a methodology for estimation of hydrodynamic loads acting on the bottom and at the walls of a stilling basin of a stepped chute with converging walls, based on the pressure measurements at the selected points of a scale model. This is...
ver más
|
|
|
|
|
|
|
|
|
|
|
Najam us Saqib, Muhammad Akbar, Huali Pan, Guoqiang Ou, Muhammad Mohsin, Assad Ali and Azka Amin
In this study, curved risers stepped spillways models based on the increasing angle of suspension were tested to check for improvement in energy dissipation and pressure distributions. Four fourteen-steps stepped spillway models with a slope 1:0.84 were ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ivan Stojnic, Michael Pfister, Jorge Matos and Anton J. Schleiss
Energy dissipators, such as stilling basins, are usually required at the toe of stepped chutes to achieve adequate and safe operation of the spillway. Stepped chute hydraulics has been extensively studied in last several decades, however, only limited kn...
ver más
|
|
|
|
|
|
|
|
|
|
|
Awais Raza, Wuyi Wan and Kashif Mehmood
Spillway is a crucial hydraulic structure used to discharge excess water from the dam reservoir. Air entrainment is essential to prevent cavitation damage on the spillway, however, without air entrainment the risk of cavitation over the spillway increase...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shicheng Li and Jianmin Zhang
Pooled stepped spillway is known for high aeration efficiency and energy dissipation, but the understanding for the effects of pool weir configuration on the flow properties and energy loss is relatively limited, so RNG
k
-
e
k
-
e
eturbulence model wi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daniel B. Bung and Daniel Valero
As with most high-velocity free-surface flows, stepped spillway flows become self-aerated when the drop height exceeds a critical value. Due to the step-induced macro-roughness, the flow field becomes more turbulent than on a similar smooth-invert chute....
ver más
|
|
|
|
|
|
|
|
|
|
|
Juan César Luna-Bahena, Oscar Pozos-Estrada, Víctor Manuel Ortiz-Martínez and Jesús Gracia-Sánchez
Crest piers placed on overflow spillways induce standing waves at the downstream end of them and the supercritical flow expands after flowing past the rear of the pier. The expanding flow from each side of a pier will intersect and form disturbances or s...
ver más
|
|
|
|
|
|
|
|
|
|
|
Hang Wan, Ran Li, Carlo Gualtieri, Huixia Yang and Jingjie Feng
Aerated flows are characterized by complex hydrodynamics and mass-transfer processes. As a Lagrangian method, smoothed particle hydrodynamics (SPH) has a significant advantage in tracking the air-water interface in turbulent flows. This paper presents th...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shenglong Gu, Liqun Ren, Xing Wang, Hongwei Xie, Yuefei Huang, Jiahua Wei and Songdong Shao
In this paper, we use the parallel open source code parallelSPHysics based on the weakly compressible Smoothed Particle Hydrodynamics (WCSPH) approach to study a spillway flow over stepped stairs. SPH is a robust mesh-free particle modelling technique an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiangju Cheng, John S. Gulliver and Dantong Zhu
One of the most uncertain parameters in stepped spillway design is the length (from the crest) of boundary layer development. The normal velocity profiles responding to the steps as bed roughness are investigated in the developing non-aerated flow region...
ver más
|
|
|
|
|
|