论文标题
在薄加热油膜上沸腾的液滴的自我塑造
Self-Propulsion of Boiling Droplets on Thin Heated Oil Films
论文作者
论文摘要
我们报告了沸腾的液滴的自我推测，尽管它们与粘性，不混溶的油膜接触，但具有与悬浮的Leidenfrost液滴相当的高速度。实验和模型表明，液滴推进源于由于在液滴油界面上沸腾事件引起的微秒波动而导致的微秒波动引起的看似不同的短时间和长时间现象之间的耦合。这种现象的相互作用导致高液滴速度的连续不对称蒸气释放和动量转移。
We report on the self-propulsion of boiling droplets which, despite their contact with viscous, immiscible oil films, attain high velocities comparable to those of levitating Leidenfrost droplets. Experiments and model reveal that droplet propulsion originates from a coupling between seemingly disparate short and long timescale phenomena due to microsecond fluctuations induced by boiling events at the droplet-oil interface. This interplay of phenomena leads to continuous asymmetric vapor release and momentum transfer for high droplet velocities.
