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Design of Hydraulic Jump Stilling Basin over Rough Beds Using CFD
https://orcid.org/https://orcid.org/0000-0001-9704-4744
https://orcid.org/https://orcid.org/0000-0002-9139-2366
This paper presents the hydraulic and structural design of a hydraulic jump stilling basin over a rough bed using three-dimensional, unsteady, detached-eddy simulation (DES). The concept design is related to a stilling basin downstream of a 50 m high dam. The use of a rough bed reduces the stilling basin length and depth, compared to the smooth bed scenario, avoiding the use of baffle blocks or dentated sills as suggested in the literature and guidelines, such as U.S. Bureau of Reclamation (USBR). The aim of this paper is to extend recent theoretical analysis on hydraulic jump over a rough bed to real-life dam cases and compare the result with the classical smooth bed stilling basins. The information related to the application of Computational Fluid Dynamics (CFD) to hydraulic jump stilling basins over rough beds is limited, and this paper provides novel results on the internal characteristics of the hydraulic jump over rough beds as well pressure fluctuations coefficients, spatial correlation function, and coefficient of lift. The CFD results are validated using available experimental and theoretical information. A step-by-step guide is also included demonstrating the structural and hydraulic design of a hydraulic jump stilling basins over a rough bed.
Design of Hydraulic Jump Stilling Basin over Rough Beds Using CFD
https://orcid.org/https://orcid.org/0000-0001-9704-4744
https://orcid.org/https://orcid.org/0000-0002-9139-2366
This paper presents the hydraulic and structural design of a hydraulic jump stilling basin over a rough bed using three-dimensional, unsteady, detached-eddy simulation (DES). The concept design is related to a stilling basin downstream of a 50 m high dam. The use of a rough bed reduces the stilling basin length and depth, compared to the smooth bed scenario, avoiding the use of baffle blocks or dentated sills as suggested in the literature and guidelines, such as U.S. Bureau of Reclamation (USBR). The aim of this paper is to extend recent theoretical analysis on hydraulic jump over a rough bed to real-life dam cases and compare the result with the classical smooth bed stilling basins. The information related to the application of Computational Fluid Dynamics (CFD) to hydraulic jump stilling basins over rough beds is limited, and this paper provides novel results on the internal characteristics of the hydraulic jump over rough beds as well pressure fluctuations coefficients, spatial correlation function, and coefficient of lift. The CFD results are validated using available experimental and theoretical information. A step-by-step guide is also included demonstrating the structural and hydraulic design of a hydraulic jump stilling basins over a rough bed.
Design of Hydraulic Jump Stilling Basin over Rough Beds Using CFD
https://orcid.org/https://orcid.org/0000-0001-9704-4744
https://orcid.org/https://orcid.org/0000-0002-9139-2366
This paper presents the hydraulic and structural design of a hydraulic jump stilling basin over a rough bed using three-dimensional, unsteady, detached-eddy simulation (DES). The concept design is related to a stilling basin downstream of a 50 m high dam. The use of a rough bed reduces the stilling basin length and depth, compared to the smooth bed scenario, avoiding the use of baffle blocks or dentated sills as suggested in the literature and guidelines, such as U.S. Bureau of Reclamation (USBR). The aim of this paper is to extend recent theoretical analysis on hydraulic jump over a rough bed to real-life dam cases and compare the result with the classical smooth bed stilling basins. The information related to the application of Computational Fluid Dynamics (CFD) to hydraulic jump stilling basins over rough beds is limited, and this paper provides novel results on the internal characteristics of the hydraulic jump over rough beds as well pressure fluctuations coefficients, spatial correlation function, and coefficient of lift. The CFD results are validated using available experimental and theoretical information. A step-by-step guide is also included demonstrating the structural and hydraulic design of a hydraulic jump stilling basins over a rough bed.
Design of Hydraulic Jump Stilling Basin over Rough Beds Using CFD
KSCE J Civ Eng
Maleki, Shayan (author) / Fiorotto, Virgilio (author)
KSCE Journal of Civil Engineering ; 28 ; 3120-3136
2024-08-01
17 pages
Article (Journal)
Electronic Resource
English
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