Experimental observation of the precessing-vortex-core reconnection phenomenon in a combined-flow turbine
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URI (для ссылок/цитирований):
https://link.springer.com/article/10.1134/S1063785017110086https://elib.sfu-kras.ru/handle/2311/110789
Дата:
2017-11Журнал:
Technical Physics LettersКвартиль журнала в Scopus:
Q2Квартиль журнала в Web of Science:
Q4Библиографическое описание:
Platonov, D. V. Experimental observation of the precessing-vortex-core reconnection phenomenon in a combined-flow turbine [Текст] / D. V. Platonov, A. V. Minakov, Д. А. Дектерев, A. V. Maslennikova, P. A. Kuibin // Technical Physics Letters. — 2017. — Т. 43 (№ 11). — С. 969-971Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
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.