期刊
ACTA PHYSICA SINICA
卷 62, 期 19, 页码 -出版社
CHINESE PHYSICAL SOC
DOI: 10.7498/aps.62.194703
关键词
bubble; free-surface; crown spike; Weber number
资金
- Excellent Young Scientists Fund [51222904]
- Key Program of the National Natural Science Foundation of China [50939002]
- National Basic Research of China [613157]
Strong interaction between bubble and free-surface will cause complex phenomena, producing many different types of spike. Based on potential flow theory, a numerical model was established to simulate the crown spike. A downward jet was formed during the bubble's collapsing, and simulation of the free-surface was continued regard less of the ring bubble's effect on it. Simulation results show good agreement with the experiment conducted with a high speed camera and a spark-generated device, and the relative error was less than 10%. Some special phenomena were found through numerical calculation, such as apron-shrink and peak-dropped. Finally, the effects of initial condition and Weber number on crown-type water column were studied.
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