Journal of Fluid Mechanics · 1975 · 796 citations · 10 references
Natural SciencesPhysicsFluid DynamicsOpticsUltrasoundBubble DynamicsCavitationUltrasonicsUltrasound PhysicsBubble CollapseBubble OscillationBubble-wall InteractionsCavitation Bubble DynamicsCavitation DynamicsCavitation ExperimentsCavitation Modeling
Cavitation bubbles were generated by focusing giant pulses of a Q‑switched ruby laser into distilled water, and their dynamics near a solid boundary were recorded with a high‑speed rotating‑mirror camera up to 300 000 fps and analyzed via computer‑based distance‑time curves to compute bubble‑wall velocities. The experimental results reproduced the numerical collapse of a spherical bubble near a plane solid boundary predicted by Plesset & Chapman, and the measured bubble shapes matched the simulation closely.
Cavitation bubbles were produced by focusing giant pulses of a Q-switched ruby laser into distilled water. The dynamics of the bubbles in the neighbourhood of a solid boundary were studied by means of high-speed photography using a rotating-mirror camera with framing rates of up to 300000 frame/s. Bubble motion was evaluated from the frames with the aid of a digital computer using a graphical input device. Smoothed distance-time curves of different portions of the bubble wall were obtained also, allowing a reliable calculation of bubble-wall velocities (except at the actual instant of collapse). One of the numerical examples of the collapse of a spherical bubble near a plane solid boundary obtained by Plesset & Chapman could be realized experimentally. A comparison of the bubble shapes shows good agreement.
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On the Destructive Action of Cavitation
Marcel Kornfeld, L. Ya. Suvorov · Journal of Applied Physics · 1944 · 382 citations