Paper L–3: High-Speed Camera Facilities at the University of California, Lawrence Radiation Laboratory

1962 ◽  
Vol 71 (1A) ◽  
pp. 449-452
Author(s):  
David C. Oakley
2008 ◽  
Vol 130 (7) ◽  
Author(s):  
Evert-Jan Foeth ◽  
Tom van Terwisga ◽  
Cas van Doorne

A three-dimensional twisted hydrofoil with an attached cavitaty closely related to propellers was observed with a high-speed camera at the University of Delft Cavitation Tunnel. Reentrant flow coming from the sides of the cavity aimed at the center plane—termed side-entrant flow—collided in the closure region of the cavity, pinching off a part of the sheet resulting in a periodic shedding. The collapse of the remainder of the sheet appears to be a mixing layer at the location of the colliding reentrant flows. Collision of side-entrant jets in the closure region of a cavity is identified as a second shedding mechanism, in addition to reentrant flow impinging the sheet interface at the leading edge.


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