Induced Oscillations of Liquid Jet-Gas Cavity System

by Donald Rockwell, Assoc. Prof. of Mech. Engrg. and Mechanics; Lehigh Univ., Bethlehem, Pa.,

Serial Information: Journal of the Hydraulics Division, 1977, Vol. 103, Issue 3, Pg. 233-249

Document Type: Journal Paper


This investigation studies the basic liquid jet-gas cavity interaction, accounting for compressibility, frequency and amplitude of jet oscillation, and fall characteristics of the undisturbed jet flow. The analysis reveals several new aspects of the liquid jet-gas cavity interaction: The phase angle between the jet origin and the cavity pressure fluctuation is a strong function of cavity compressibility and oscillation frequency; the amplitude of the cavity pressure fluctuation has resonance states which are related to phase angle and compressibility effects; the phase angle dependence on frequency of oscillation has well-defined upper and lower limits due to cavity compressibility limits.

Subject Headings: Compression | Oscillations | Cavitation | Resonance

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