Results 21 to 30 of about 1,517 (200)
Standing waves of the stepped dropshaft in a deep tunnel stormwater system
Water Science and Technology, 2023 The deep tunnel stormwater system, consisting of dropshafts and underground tunnels, is used to alleviate or prevent urban water problems associated with extreme rainfall events. The stepped dropshaft can transport surface runoff to the tunnels with high
Jingkang Sun +4 more
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Investigation of the Effect of Ramp Angle on Chute Aeration System Efficiency by Two-Phase Flow Analysis [PDF]
علوم و مهندسی آبیاری, 2021 Flow aeration in chute spillway is one of the most effective and economic ways to prevent cavitation damage. Surface damage is significantly reduced when very small values of air are scattered in a water prism. A structure known as an aerator may be used
Babak Lashkar-Ara, Leila Najafi
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Analysis of two-phase flows in plunge pools of nappe jets [PDF]
Proceedings of the 8th IAHR International Symposium on Hydraulic Structures ISHS2020, 2020 This study presents an experimental work to analyse the submerged hydraulic jump generated downstream of overflow nappe impinging jets. The overflow structure consists in a sharp-crested weir located at an elevation of 2.20 m from the bottom of the plunge pool.
Carrillo Sánchez, José María +3 more
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, 2017 Le déversoir à étages augmente la résistance hydraulique contre l'écoulement en utilisant un plancher en déversoir fabriqué à l'aide de marches et lorsque l'écoulement de l'eau circule sur les marches, une partie importante de l'énergie se dissipe et réduit également le risque de cavitation.
Moghaddam, Amir Kamyab +4 more
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Shui kexue jinzhan, 2017 We propose a new method for reconstructing complex surface velocity field in weir flow which is notoriously difficult to measure due to its sharp drop and high fluctuation. The new method is able to map the curved flow surface by two coplanar cameras and
CAO Liekai +4 more
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Effect of 3D submerged jet shape on maximum pressure of plunge pool bottom
AIP Advances, 2023 Maximum pressure is one of the key factors that affect jet scouring. Previous studies have focused on the attenuation characteristics of the submerged jet, but there are few studies on the influence of the nappe shape on the pressure of the plunge pool ...
Pengfei Xia +4 more
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Effects of Outlet Shrinkage on Hydraulics in Hyper-Concentrated Sediment-Laden Flow
Applied Sciences, 2020 Finding an appropriate shape for the releasing building is thoroughly relevant given the energy dissipation and safety requirements of a high dam in a sediment-laden river.
Jijian Lian +4 more
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BSGF - Earth Sciences Bulletin, 2022 Based on new structural, petrological and U-Th-Pb geochronological data, a reappraisal of the Variscan tectono-metamorphic history of the Pelvoux Massif (External Crystalline Massif, French Alps) is proposed with the aim to understand the flow pattern ...
Fréville Kévin +7 more
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Study of Conveniency of Using Stepped Spillway in Roller Compacted Concrete Dams (RCCD) [PDF]
Engineering and Technology Journal, 2009 A suggested design of Bastora stepped spillway has been taken as a prototype to build a physical wooden model with scale of 1:20 (Lm/Lp). Experiments have been carried out on the model with slope of upward inclined steps of 420, 280, 140 and 00.
Karim K. EL- Jumaily +1 more
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Geosciences, 2020 The deep biosphere hosted in fractured rocks within the upper continental crust is one of the least understood and studied ecological realms on Earth. Scarce knowledge of ancient life and paleo-fluid flow within this realm is owing to the lack of deep ...
Henrik Drake +2 more
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