Unsteady cavities near the hydrofoil with a small aspect ratio

S. G. Skripkin, M. A. Tsoy, A. Y. Kravtsova

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференциирецензирование


Using digital processing of high-speed visualization data on a cavitation flow near NACA hydrofoil with critically low aspect ratio, the frequencies of the formation and separation of cavities in the flow are identified. It is shown that in the case of development of cloud cavitation the main dimensionless frequency varies within 0.4, which corresponds to the type of internal instability. The Strouhal number corresponds to the frequency of attached cavity occurrence and varies in range from 0.6 to 0.8. The Strouhal numbers calculated in third mode exceed 1. This mode corresponds to the forming of very small cavities near the leading edge of hydrofoil.

Язык оригиналаанглийский
Номер статьи012033
ЖурналJournal of Physics: Conference Series
Номер выпуска1
СостояниеОпубликовано - 8 нояб. 2021
Событие6th All-Russian Conference on Thermophysics and Physical Hydrodynamics, TPH 2021 and the School for Young Scientists on Thermal Physics and Physical Hydrodynamics: Modern Challenges, TPHMC2021 - Sevastopol, Украина
Продолжительность: 22 авг. 202129 авг. 2021

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