Results 31 to 40 of about 451 (135)

Determination of position of hydraulic jump in a flume by using CFD and comparison with experiential results

open access: yesRomanian Journal of Ecology & Environmental Chemistry, 2020
Dams and hydraulic structures are used for the supply and control of water, which have great importance on human life. Sluice gate is one of the hydraulic control structures.
Ali Yildiz   +3 more
doaj   +1 more source

Analysis and prediction of the factors influencing the terrain under the Cao'e River sluice gate

open access: yesShuili Shuiyun Gongcheng Xuebao
Since the completion of the Cao’e River sluice gate, problems related to scouring beneath the gate have been significant, with three rounds of anti-scour reinforcement measures implemented successively.
LIN Yinan   +4 more
doaj   +1 more source

Evaluating Water Level Variability Under Different Sluice Gate Operation Strategies: A Case Study of the Long Xuyen Quadrangle, Vietnam

open access: yesHydrology
The Vietnamese Mekong Delta (VMD) faces increasing challenges due to upstream hydrological fluctuations and climate change, necessitating optimized water management strategies.
Dinh Van Duy   +7 more
doaj   +1 more source

Key Technology Research on Metal Structure of Datengxia Spillway Gate

open access: yesRenmin Zhujiang, 2022
Using the main dam of the Datengxia Hydro Project as a background,a brief introduction to the metal structure arrangement of the spillway gate.The sluice gate has a large number of discharge holes,large size,frequent operation,high drainage control ...
YUAN Wei, FAN Xiaofu, QI Qige
doaj  

Experimental Study of Flow Characteristics Through Sluice Gates in U-Shaped Channels

open access: yesGuan'gai paishui xuebao, 2023
【Objective】 Flow measurement through sluice gates in U-Shaped channels depends on a range of factors. We experimentally measured the characteristics of flow through the gates under different designs and working conditions, and then derived a formula ...
HU Mingyu   +5 more
doaj   +1 more source

Numerical simulation of storm surge characteristics in downstream of tide sluice located at tidal estuary

open access: yesShuili Shuiyun Gongcheng Xuebao, 2018
Evaluation of the storm surge in the downstream of the tide sluice is vital to flood control and drainage from a tidal estuary. The Lixiahe district including the Sheyang River, the Huangsha River, the Xinyang River and the Doulong River situated at the ...
ZHANG Weisheng   +3 more
doaj   +1 more source

Environmental Statecraft, Fragmented Authoritarianism, and Technocratic Governance: The Structure and Agency of China's Local Environmental Politics

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Local environmental politics in China is often said to be dominated by state‐controlled modes of multi‐level governance. However, top‐down governance is embedded within and transformed by local politics, adding complexity to governance practices and environmental outcomes.
Minsi Liu, Kevin Lo
wiley   +1 more source

Genetic Algorithm‐Driven Analysis of Gravitational Water Vortex Power Plant Runner Performance: A Comparative Study Integrating Experimental and Computational Fluid Dynamics

open access: yesEnergy Science &Engineering, EarlyView.
This study integrates genetic algorithm optimization, CFD simulation, and experimental validation to identify the optimal runner geometry for a gravitational water vortex turbine. The combined approach enhances vortex stability and improves energy conversion efficiency, demonstrating strong agreement between predicted and measured performance ...
Zakaria. A. Mwakitwange, Adam Faraji
wiley   +1 more source

A framework for investigating fish population density responses to habitat fragmentation

open access: yesOikos, EarlyView.
Globally, fish populations that rely on rivers are being fragmented by in‐stream barriers, but it is unclear how pervasive any negative population responses to fragmentation are. We developed a modeling framework for estimating density responses of fishes upstream and downstream of in‐stream barriers and applied it to learn how low‐head dams have ...
Sean A. Lewandoski   +3 more
wiley   +1 more source

How Tough a Passage? Nonnative Fish Entrainment Survivability at a Major Dam in the Western USA

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT The Colorado River downstream of Glen Canyon Dam (GCD) in the southwest USA demonstrates anthropogenic modification including altered flow and temperature regimes and established nonnative species in upstream reservoirs. Water overallocation and megadrought are contributing to new potential invasion pathways for nonnative fishes through dam ...
Barrett Friesen   +2 more
wiley   +1 more source

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