Interaction of two bubbles in water

Cho, Yong Soo; Baek, Sung Hyun; Lee, Jaimin; Choi, Kyung Young; Song, So-young
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p1145
Academic Journal
The waterjet produced by an underwater bubble can be strengthened by producing a relatively small bubble in the vicinity. To investigate this strengthening effect, small to large scale experiments were made while varying the ratio of explosive weights of the primary to the secondary bubbles, their relative position, and initiation time delay for the secondary bubble, etc. The interaction of two bubbles was recorded by using a motion analyzer, and the pressure of the resulting waterjet was measured by using a pressure transducer on a target surface submerged in water. The waterjet impulse produced by the interaction of two bubbles was determined to be two times higher than that by a single bubble of the total explosive weight.


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