The report concerns the behavior of cyclic liquid jets in pulsating bubbles. The jets were developed in bubbles which were situated on a vibrating platform that was contained within a vessel capable of sustaining reduced pressures. The entire assembly was mounted on a variable frequency vibration table and driven at displacement amplitudes on the order of a millimeter. The reduced pressure enabled the jets to be quite easily formed within the vessel; the jets were formed in bubbles containing both vapor and gas, thus resulting in bubbles exhibiting jet behavior over several cycles. The bubbles were photographed with a high speed camera and a detailed analysis made of the behavior of the the jet as a function of time. It was found that the bubble surface could be well represented by the first four even terms of a Legendre polynomial expansion. Further, a graphic three-dimensional display of the bubble surface, generated by the expansion, gives excellent agreement with the observed behavior.
Cyclic liquid jet behavior in pulsating bubbles
Verhalten ringfoermiger Fluessigkeitsstrahlen in pulsierenden Blaeschen
US Government Reports ; 1-99
1976
99 Seiten
Report
Englisch
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