Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways
2018
Authors
Ljubičić, RobertZindović, Budo
Vojt, Predrag
Pavlović, Dragutin
Kapor, Radomir
Savić, Ljubodrag
Article (Published version)
Metadata
Show full item recordAbstract
The performance of flat stilling basins can be inadequate for conditions when the tailwater depth is insufficient for hydraulic jump stabilization. In such cases, adverse-slope stilling basins can be used because they reduce the necessary tailwater depth. Sloped basins combined with smooth chutes have been the subject of many studies. However, limited research has been done for basins with stepped chutes, which are characterized by intensive flow aeration and high energy dissipation. Based on our scale-model experimental measurements of depth, velocity, and air concentration, we present a momentum-based method to characterize such hydraulic jump: the sequent depth ratio, the length of hydraulic jump roller, and energy dissipation effectiveness. The proposed method provides better agreement with experimental data when compared to existing methods and can be used for preliminary design.
Keywords:
hydraulic jump / stepped spillway / hydraulic models / adverse-slope basin / hydraulic structure designSource:
Water, 2018, 10, 4Publisher:
- MDPI AG
Funding / projects:
- Monitoring and Modeling of Rivers and Reservoirs (MORE) - Physical, Chemical, Biological and Morphodynamic Parameters (RS-MESTD-Technological Development (TD or TR)-37009)
- Urban Drainage Systems as Key Infrastructure in Cities and Towns (RS-MESTD-Technological Development (TD or TR)-37010)
DOI: 10.3390/w10040460
ISSN: 2073-4441
WoS: 000434954900114
Scopus: 2-s2.0-85045303048
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GraFarTY - JOUR AU - Ljubičić, Robert AU - Zindović, Budo AU - Vojt, Predrag AU - Pavlović, Dragutin AU - Kapor, Radomir AU - Savić, Ljubodrag PY - 2018 UR - https://grafar.grf.bg.ac.rs/handle/123456789/940 AB - The performance of flat stilling basins can be inadequate for conditions when the tailwater depth is insufficient for hydraulic jump stabilization. In such cases, adverse-slope stilling basins can be used because they reduce the necessary tailwater depth. Sloped basins combined with smooth chutes have been the subject of many studies. However, limited research has been done for basins with stepped chutes, which are characterized by intensive flow aeration and high energy dissipation. Based on our scale-model experimental measurements of depth, velocity, and air concentration, we present a momentum-based method to characterize such hydraulic jump: the sequent depth ratio, the length of hydraulic jump roller, and energy dissipation effectiveness. The proposed method provides better agreement with experimental data when compared to existing methods and can be used for preliminary design. PB - MDPI AG T2 - Water T1 - Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways IS - 4 VL - 10 DO - 10.3390/w10040460 ER -
@article{ author = "Ljubičić, Robert and Zindović, Budo and Vojt, Predrag and Pavlović, Dragutin and Kapor, Radomir and Savić, Ljubodrag", year = "2018", abstract = "The performance of flat stilling basins can be inadequate for conditions when the tailwater depth is insufficient for hydraulic jump stabilization. In such cases, adverse-slope stilling basins can be used because they reduce the necessary tailwater depth. Sloped basins combined with smooth chutes have been the subject of many studies. However, limited research has been done for basins with stepped chutes, which are characterized by intensive flow aeration and high energy dissipation. Based on our scale-model experimental measurements of depth, velocity, and air concentration, we present a momentum-based method to characterize such hydraulic jump: the sequent depth ratio, the length of hydraulic jump roller, and energy dissipation effectiveness. The proposed method provides better agreement with experimental data when compared to existing methods and can be used for preliminary design.", publisher = "MDPI AG", journal = "Water", title = "Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways", number = "4", volume = "10", doi = "10.3390/w10040460" }
Ljubičić, R., Zindović, B., Vojt, P., Pavlović, D., Kapor, R.,& Savić, L.. (2018). Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways. in Water MDPI AG., 10(4). https://doi.org/10.3390/w10040460
Ljubičić R, Zindović B, Vojt P, Pavlović D, Kapor R, Savić L. Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways. in Water. 2018;10(4). doi:10.3390/w10040460 .
Ljubičić, Robert, Zindović, Budo, Vojt, Predrag, Pavlović, Dragutin, Kapor, Radomir, Savić, Ljubodrag, "Hydraulic Jumps in Adverse-Slope Stilling Basins for Stepped Spillways" in Water, 10, no. 4 (2018), https://doi.org/10.3390/w10040460 . .