Water Tunnel Observations on the Flow Past a Plano-Convex Hydrofoil

Abstract

Experimental results of the performance of a plano-convex hydrofoil under non-cavitating and cavitating conditions are presented. Lift, drag and moment coefficients are given as a function of the cavitation number, together with the behavior of the cavity length. Some unsteady effects occurring under cavitating conditions are also considered. In this region of cavitation the magnitude of the force oscillations together with the fluctuation of the cavity length are presented. The frequency of these oscillations and the general behavior of the cavity are discussed.

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