Experimental observation of the precessing-vortex-core reconnection phenomenon in a combined-flow turbine
- Авторы: Platonov D.V.1,2, Minakov A.V.1,2, Dekterev D.A.1,2, Maslennikova A.V.3, Kuibin P.A.2
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Учреждения:
- Siberian Federal University
- Kutateladze Institute of Thermophysics, Siberian Branch
- Siberian Federal University, Sayano-Shushensky Branch
- Выпуск: Том 43, № 11 (2017)
- Страницы: 969-971
- Раздел: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/206306
- DOI: https://doi.org/10.1134/S1063785017110086
- ID: 206306
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Аннотация
Some results of experimental studies of the vortex-core reconnection phenomenon in the flowthrough duct of a combined-flow turbine were presented. The studies were performed on a medium-scale hydrodynamic test bench, the design of which was maximally similar to real hydroturbines. Using high-speed recording in a regime with a 75% load in a suction-pipe diffuser, the reconnection of a precessing vortex-core with detachment of vortex rings was observed. Aperiodic pressure surges due to the reconnection of a vortex and the formation of vortex rings were experimentally detected.
Об авторах
D. Platonov
Siberian Federal University; Kutateladze Institute of Thermophysics, Siberian Branch
Email: tov-andrey@yandex.ru
Россия, Krasnoyarsk, 660041; Novosibirsk, 630090
A. Minakov
Siberian Federal University; Kutateladze Institute of Thermophysics, Siberian Branch
Автор, ответственный за переписку.
Email: tov-andrey@yandex.ru
Россия, Krasnoyarsk, 660041; Novosibirsk, 630090
D. Dekterev
Siberian Federal University; Kutateladze Institute of Thermophysics, Siberian Branch
Email: tov-andrey@yandex.ru
Россия, Krasnoyarsk, 660041; Novosibirsk, 630090
A. Maslennikova
Siberian Federal University, Sayano-Shushensky Branch
Email: tov-andrey@yandex.ru
Россия, Sayanogorsk, Republic of Khakassia, 655619
P. Kuibin
Kutateladze Institute of Thermophysics, Siberian Branch
Email: tov-andrey@yandex.ru
Россия, Novosibirsk, 630090
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