Results 41 to 50 of about 55,812 (258)
H2Open Journal, 2023 The stepped spillway of a dam is a crucial element that serves multiple purposes in the field of river engineering. Research related to flood control necessitates an investigation into the dissipation of energy over stepped spillways.
Saurabh Pujari +4 more
doaj +1 more source
Energy Dissipation on Stepped Spillways [PDF]
Journal of Hydraulic Engineering, 1995 The author provided interesting data on stepped spillway flows. The writer would like to add some information on flow resistance of skimming flows and discuss the energy dissipation on stepped chutes. It will be shown that the author's results are not dissimilar with results previously obtained by other researchers.
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Stepped spillway model pressures characteristics, Susu Dam Malaysia [PDF]
, 2014 Susu Dam is an RCC Dam under construction in Peninsula Malaysia. The dam design has been carried out by SMEC International in its offices in Kuala Lumpur. The dam is some 90 m tall.
Tullis, B. P. +5 more
core +1 more source
Advanced Functional Materials, EarlyView.This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li +9 more
wiley +1 more source
Re-Aeration on Stepped Spillways with Special Consideration of Entrained and Entrapped Air
Geosciences, 2018 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.
Daniel B. Bung, Daniel Valero
doaj +1 more source
Determination of Discharge Flow in Unit Width for the Distinction of Nappe and Skimming Flow in Stepped Spillway Using Flow 3d (Case Study: Siah Bishe Dam) [PDF]
پژوهشهای زیرساختهای عمرانی, 2020 One of the major challenges in dam engineering is the design of the discharge flow of the stepped spillway. The rate of energy dissipation in downstream currents is higher than that of skimming currents.
Aydin Shishegaran +2 more
doaj +1 more source
Advanced Materials, EarlyView.A giant insulator to metal transition and emergent superparamagnetism are revealed by nanoparticle exsolution in non‐stoichiometric titanate perovskite thin films. By combining transport, synchrotron spectroscopy, and first‐principles calculations, this work reveals how defect reconfiguration and lattice reconstruction fundamentally reshape electronic ...
Sungil Kim +11 more
wiley +1 more source
History of stepped channels and spillways: a rediscovery of the “wheel” [PDF]
Canadian Journal of Civil Engineering, 1995 Recently, spillways with a stepped profile have regained interest and favor among design engineers to pass flood waters over the dams. The stepped geometry enhances the energy dissipation above the spillway and reduces the size of a downstream stilling basin.
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Advanced Materials, EarlyView.This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao +3 more
wiley +1 more source
Physical Modeling of an Aerating Stepped Spillway
, 2016 To mitigate the negative effects on the water quality in the downstream river of a projected large dam, and in particular to increase the dissolved oxygen concentration during low flow periods within the first 10 years of dam operation, an aerating weir has been designed and tested on a physical model at the Laboratory of Engineering Hydraulics (HECE ...
Erpicum, Sébastien +5 more
openaire +2 more sources