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arXiv 1402.6718cond-mat.softphysics.flu-dyn
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高粘度和低粘度液体中飞溅的比较

Comparison of splashing in high and low viscosity liquids

Cacey S. Stevens, Andrzej Latka, Sidney R. Nagel

摘要:

我们探讨了当液滴撞击光滑干燥的表面时飞溅的演变。当液体粘度变化时,存在两种飞溅状态,如其对环境气体压力的依赖性所证明的。高粘度的液滴在首次接触固体很久之后,通过从扩展的液体薄层喷射出一薄层液体而飞溅。同样地,我们发现当低粘度液滴飞溅时,薄片的喷射也有延迟。我们展示了如何喷射时间的薄片取决于液体粘度和环境气体压力。

英文摘要:

We explore the evolution of a splash when a liquid drop impacts a smooth, dry surface. There are two splashing regimes that occur when the liquid viscosity is varied, as is evidenced by its dependence on ambient gas pressure. A high-viscosity drop splashes by emitting a thin sheet of liquid from a spreading liquid lamella long after the drop has first contacted the solid. Likewise, we find that there is also a delay in the ejection of a thin sheet when a low-viscosity drop splashes. We show how the ejection time of the thin sheet depends on liquid viscosity and ambient gas pressure.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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