Abstract
Bubble growth and collapse in acoustic droplet vaporization (ADV) are numerically studied by employing the level-set interface tracking method, which is extended to examine bubble compressibility, phase change, and multiple interfaces between bubble–droplet and droplet–ambient liquid phases. Numerical results on the vaporization of dodecafluoropentane droplets show that the acoustic pressure amplitude and frequency considerably affect bubble survival and collapse in the ADV process, whereas the number of acoustic cycles exerts minimal influence on it. The effects of acoustic pulsing conditions on the vaporization of droplets with high surface tension are also quantified.
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