Hydrodynamic studies of an expanding apron with energy absorbers of an erosion-free structure behind a tubular spillway
https://doi.org/10.26897/1997-6011-2025-4-81-88
Abstract
The article presents the results of hydraulic and hydrodynamic studies ofthe expanding stilling section of the lower pool with a set of energy absorbers that provide the necessary energy-absorbing capacity, form a favorable flow regime behind the hydraulic structure and allow to combat flow failure, despite the cavitation conditions and significant pulsation loads in the initial part of the stilling section of the four-span tubular spillway. Optimization of the design elements of the outlet head will allow, when implementing the modernized preliminary design after the decision is made to resume construction of the Nizhne-Kafirnigansky hydraulic structure, to ensure reliable operation of its lower pool regardless of either the cavitation stage or changes in the spectra and magnitude of pressure pulsation at individual points and local sections of the stilling section, and to stabilize the flow in the outlet channel.
Keywords
Supporting agencies: This study was carried out under agreement No. 075-15-2025-543 dated 16.06.2025
About the Authors
O. N. Chernykh
Russian State Agrarian University – Timiryazev Moscow Agricultural Academy; A.N. Kostyakov Institute of Land Reclamation, Water Management and Construction
Russian Federation
Russian Federation
Olga N. Chernykh, CSc (Eng), associate professor
49 Timiryazevskaya St., Moscow, 127434
WoS ResearcherID: S-2542-2018
ScopusAuthorID: 57213261727
AuthorID: 692667
A. V. Burlachenko
Moscow Automobile and Road Construction State Technical University (MADI)
Russian Federation
Russian Federation
Alena V. Burlachenko, CSc (Eng), associate professor
125319, Moscow, Leningradsky prospect, 64
WoSResearcherID: HPE-1499-2023
ScopusAuthorID: 57191856023
AuthorID: 1098780
Ya. Yu. Burlachenko
Russian State Agrarian University – Timiryazev Moscow Agricultural Academy; A.N. Kostyakov Institute of Land Reclamation, Water Management and Construction
Russian Federation
Russian Federation
Yaroslav Yu. Burlachenko, the applicant
49 Timiryazevskaya St., Moscow, 127434
References
1. Rozanov N.P. et al. Spillway tailrace devices: monograph / N.P. Rozanov, N.T. Kaveshnikov, V.I. Kitov; Ed. by prof. N.P. Rozanov. Moscow: Kolos, 1984. 269 p.
2. Rozanov N.P., Rumiantsev J.S., Rozanovа N.N., Kaveshnikov N.T., Kitov E.I., Bukreiev V.P., Chernykh O.N., Chechonadskikh V.S. Rational Types and Designing of Tailwater arrangements in open spillways. Spillway Tunnels and Culvert-type spillways. International Comission onLarge Dams, XIII Congress, New-Delhi, India, 1979.
3. Obidov B., Vokhidov O., Shodiev B., Ashirov B., Saraeva M. (2020) Hydrodynamic loads on a water drain with cavitation quenchers. IOP Conference Series: Materials Science and Engineering. 883. P. 012011. DOI:10.1088/1757-899x/883/1/012011
4. Rozanov N.P., Rozanovа N.N. Some probleme of modelling water ontlet structures with free-surface (Subject Da-c). XIX JAHR congress New-Delhi, India, 1981, Proceeding Subject – D(a), Paper № 10, Volume V.
5. Rozanova N.N., Ariel A.R. Cavitation and hydraulic studies of erosion-free energy absorbers / Collection of scientific papers. Natural and model studies of hydraulic structures, Moscow: 1983. P. 75-81.
6. Burlachenko A.V., Burlachenko Y.Y., Brakeni A., Chernykh O.N. (2024). Ensure the stability of the water retention plates of hydraulic structure, Larhyss Journal, No. 58, P. 73-87.
7. Hydraulic calculations of spillway hydraulic structures: Reference manual / Ed. D.D. Lappo. M.: Energoatomizdat, 1988. 624 p.
8. Chernykh O.N., Burlachenko A.V., Burlachenko Ya.Yu. Experimental and analytical studies of loads on fastening elements behind spillways of water bodies of the agro-industrial complex / /Prirodoobustrojstvo. 2023. No. 4. P. 12-20. EDN: MQRYMW
9. Chernykh O.N., Komelkov L.V. Hydrodynamic loads and stability of the lower-pool apron of hydraulic structures // Hydrotechnical Construction. 1983. Vol. 17 (8). P. 410-416.
10. Burlachenko A.V., Chernykh O.N., Brakeni A. Operation evaluation of water discharge end sections in the conditions of narrow downthrow // Larhyss Journal. 2023. No. 56. P. 25-38.
11. Culvert hydraulic structures (spillways, water outlets and water discharges). Design rules. Code of rules. SP 290. 1325800, p. 4.11. 2016. URL: https://docs.cntd.ru/document/456074911.
12. Lyather V.M. Turbulence in hydraulic structures: monograph. Moscow: Energiya. 1968. 408 p.
13. Chernykh O.N., Burlachenko A.V., Burlachenko Ya.Yu. Ensuring the reliability of fastening from slabs behind culverts of melioration systems of the agro-industrial complex // Prirodoobustrojstvo / 2023. No. 5. P. 41-46. https://doi.org/10.26897/1997-6011-2023-5-40-46
14. Alsadek E.S. Fastenings in the lower pool of the mine spillway of the “16 Tishrin” hydroelectric complex // Prirodoobustrojstvo / 2024. No. 3. P. 63-70 https://doi.org/10.26897/1997-6011-2024-3-63-70
15. Dilshod Bazarov, Nikolai Vatin, Obidov Bakhtiyor, Vokhidov Oybek, Ashraf Rakhimov and Makhfuz Akhmadi. Hydrodynamic effects ofthe flow on the slab ofthe stand in the presence of cavitation. IOP ConferenceSeries: Materials Science and Engineering. IPICSE2020. 1030 (2021) 012116 doi:10.1088/1757-99X/1030/1/012116.
Review
For citations:
Chernykh O.N., Burlachenko A.V., Burlachenko Ya.Yu. Hydrodynamic studies of an expanding apron with energy absorbers of an erosion-free structure behind a tubular spillway. Prirodoobustrojstvo. 2025;(4):81-88. (In Russ.) https://doi.org/10.26897/1997-6011-2025-4-81-88
Views:
4
Email this article 