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THE STABILIZATION OF CAVITATION NUCLEI IN FLUIDS,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The report describes an experiment performed to verify the neutralization of the bubble buoyancy in cavitation nuclei. Distilled and tap water which stood for several days was subjected to normal air saturation and a given atmospheric pressure and temperature. Additional nuclei were created by means of an impeller placed on the shaft of a small electric motor with the pump rpm and time element remaining constant. Results of the experiment indicate that with identical mixing of fluids with varying concentrations of solid impurities, the quantity of gas bubbles formed in tap water greatly exceeds the bubble content of distilled water. It is concluded that the experimental investigations agree with the proposed hypothesis of the mechanism of the prolonged existence of microscopic cavitation nuclei in a fluid. Author
APPROVED FOR PUBLIC RELEASE