Results 31 to 40 of about 11,592 (141)
River, Volume 2, Issue 4, Page 433-444, November 2023., 2023 Aiming at the aeration problem of falling water in overflow weir of siphon well, this study calculated and simulated three kinds of antibubble engineering cases. The hydraulic characteristics of the hydraulic structure section and the aeration concentration distribution of the horizontal drainage section were studied. The results will provide a certain
Da Liu +4 more
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Investigation of turbulent flows using spillway models aiming to aid downstream migration of fish
River Research and Applications, Volume 39, Issue 6, Page 1110-1121, July 2023., 2023 Abstract Dams and other flow control structures constitute obstacles to upstream and downstream aquatic habitats, reducing life‐cycle success and even eliminating diadromous and potamodromous fish species from river basins. Providing effective passage past hydroelectric dams is critical for restoring habitat connectivity and sustaining populations of ...
A. Shirinzad +4 more
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Journal of Flood Risk Management, Volume 14, Issue 1, March 2021., 2021 Abstract This study presents a novel stochastic simulation–optimization approach for optimum designing of flood control dam through incorporation of various sources of uncertainties. The optimization problem is formulated based on two objective functions, namely, annual cost of dam implementation and dam overtopping probability, as those are the two ...
Ahmad Sharafati +2 more
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Complex q‐Rung Orthopair Fuzzy N‐Soft Sets: A New Model with Applications
Complexity, Volume 2021, Issue 1, 2021., 2021 This research article expands the formal representation of human thinking to a most generalized hybrid theory, namely, complex q‐rung orthopair fuzzy N‐soft set. It is able to capture a great deal of graded imprecision and vagueness, which so often appear together in human interpretations.
Muhammad Akram +3 more
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Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 The jet flipped from flip buckets hits the dam’s downstream side as a free jet with an immense amount of energy, leading to bed erosion. Erosion of river bed materials downstream of dams could affect the performance of dams or power plants by altering the tailwater depth, rendering proper designs of controlling structures or erosion reduction methods ...
Kamran Khalifehei +3 more
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Jurnal Teknik Hidraulik, 2021 A spillway is one of many important components of a dam, which is operated to prevent the dam from overtopping. Spillway with gate structures requires to have a good operation pattern by considering a minimum critical height and outflow discharge to ...
Ariberto Jonathan +2 more
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Performance Assessment of Shockwaves of Chute Spillways in Large Dams
Shock and Vibration, Volume 2021, Issue 1, 2021., 2021 Spillways are the most important structures of large dams that are responsible for releasing the excessive flood discharge from the reservoir. Although many studies have been performed to determine the flow characteristics over these structures, however, the available information on the shockwaves’ characteristics for spillways’ design is limited.
S. M. Mousavimehr +3 more
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Iraqi Journal of Civil Engineering, 2022 The spillway is an important structure in the dams, used to pass the flood wave to the downstream safely. In the past decades, Computational fluid dynamics (CFD) has evolved.
A. –, A. .
semanticscholar +1 more source
Numerical Simulation of Stepped Spillways with Front Step Deformation
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 In order to solve the flood discharge problem of both small‐ and medium‐sized warping dams in the Loess Plateau, a stepped spillway scheme, based on an ecological bag, to achieve full‐section water flow and energy dissipation has been proposed in this paper.
Guodong Li +6 more
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The inception point of flow aeration on a rough stepped spillway [PDF]
هیدرولیک, 2023 Stepped spillways are used in hydraulic engineering projects such as small and large dams. The inception point of aeration on such hydraulic structures is essential in determining the zones of single and two-phase flow.
عباس پارسائی +2 more
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