Počet záznamů: 1
Determination of frequencies of oscillations of cloud cavitation on a 2-D hydrofoil from high-speed camera observations
- 1. 0460682 - UT-L 2017 RIV CN eng J - Článek v odborném periodiku
Zima, Patrik - Fürst, T. - Sedlář, M. - Komárek, M. - Huzlík, R.
Determination of frequencies of oscillations of cloud cavitation on a 2-D hydrofoil from high-speed camera observations.
Journal of Hydrodynamics. Roč. 28, č. 3 (2016), s. 369-378. ISSN 1001-6058
Grant CEP: GA ČR GA13-23550S
Institucionální podpora: RVO:61388998
Klíčová slova: unsteady cavitation * oscillation frequency * high-speed camera observation
Kód oboru RIV: BK - Mechanika tekutin
Impakt faktor: 1.174, rok: 2016
A method is presented to determine significant frequencies of oscillations of cavitation structures from high-speed camera recordings of a flow around a 2-D hydrofoil. The top view of the suction side of an NACA 2412 hydrofoil is studied in a transparent test section of a cavitation tunnel for selected cloud cavitation regimes with strong oscillations induced by the leading-edge cavity shedding. The ability of the method to accurately determine the dominant oscillation frequencies is confirmed by pressure measure- ments. The method can resolve subtle flow characteristics that are not visible to the naked eye. The method can be used for non- invasive experimental studies of oscillations in cavitating flows with adequate visual access when pressure measurements are not available or when such measurements would disturb the flow.
Trvalý link: http://hdl.handle.net/11104/0260735