Results 11 to 20 of about 4,016 (315)
Using side flow jets as a scour countermeasure downstream of a sluice gate
Beni-Suef University Journal of Basic and Applied Sciences, 2021 Background Local scour is one of the main problems affecting the stability and operation of control hydraulic structures. Many techniques were used to control the resulting scour.
Mohamed S. Abdelmoaty, Mahmoud Zayed
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Physical Modeling of Local Scouring around Bridge Piers in Erodable Bed
Journal of King Saud University: Engineering Sciences, 2007 The construction of bridges in alluvial channels will cause a contraction in the waterway at the bridge site. The contraction in the waterway will cause a significant scour at that site.
Thamer Ahmed Mohammed +4 more
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Numerical Simulation on the Local Scour Processing and Influencing Factors of Submarine Pipeline
Journal of Marine Science and Engineering, 2023 To investigate the different influencing characteristics of local scour around submarine pipelines, hydrodynamic and sediment transport two-dimensional models based on Flow-3D are used to numerically simulate the local scour around the pipeline under ...
Ke Hu, Xinglan Bai, Murilo A. Vaz
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Local Scour Near Flexible Flow Deflectors [PDF]
Water, 2020 Rigid flow deflectors are usually used on water flow beds to protect engineering structures such as breakwater in coasts and to regulate flow routes in open channels. To reduce its side-effects, i.e., local scour at the toe of deflectors, a flexible flow deflector is proposed, and the corresponding local scour was investigated in this study.
Liquan Xie +5 more
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Ain Shams Engineering Journal, 2013 Local scour downstream stilling basins is so complex that it makes it difficult to establish a general empirical model to provide accurate estimation for scour depth. Lack estimation of local scour can endanger to stability of hydraulic structure and can
Yasser Abdallah Mohamed Moussa
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BJS (British Journal of Surgery), EarlyView., 2020 Clean Cut is a multimodal, adaptive, checklist‐based infection prevention programme designed to improve compliance with six critical perioperative infection prevention practices. After introducing the programme at five hospitals in Ethiopia, compliance with critical infection prevention standards significantly improved and the relative risk of ...
J. A. Forrester +16 more
wiley +1 more source
Local scour around a bridge pier under ice-jammed flow condition – an experimental study
Journal of Hydrology and Hydromechanics, 2021 The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun +5 more
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Ain Shams Engineering Journal, 2018 Bridges are one of the important structures across the Nile River; these bridges may be subjected to collapse if there is no monitoring or safety precaution for local scour during high floods.
Ahmed Moustafa Ahmed Moussa
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Localized Turbulent Flows on Scouring Granular Beds [PDF]
Physical Review Letters, 2005 In many applications a sustained, localized turbulent flow scours a cohesionless granular bed to form a pothole. Here we use similarity methods to derive a theoretical formula for the equilibrium depth of the pothole. Whereas the empirical formulas customarily used in applications contain numerous free exponents, the theoretical formula contains a ...
Gioia, Gustavo, Bombardelli, Fabian A.
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Experimental investigation of local scour around multi-vents bridge piers
Alexandria Engineering Journal, 2015 The harmful effect of local scour around bridge piers and abutments can induce high maintenance costs or even bridge collapse resulting in the disturbance of traffic and possibly human losses.
Yasser A. Mohammed +2 more
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