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arXiv 2108.02592physics.flu-dyncond-mat.soft
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液滴合并过程中的毛细管填充:四相接触点的动力学

Capillary filling in drop merging: dynamics of the four-phase contact point

Peyman Rostami, Günter K. Auernhammer

摘要:

由于液滴之间形成液-液界面,不混溶液滴的合并与混溶液滴的合并显著不同。不可渗透性需要形成四相接触点,液滴、气体和基底在此相遇。我们表明,这一点有自己独特的动力学,从来没有事先研究。对于非常不同的场景,该点的传播距离遵循时间尺度,如t^{0.5}。平衡驱动力和耗散力的模型与我们的实验相一致。

英文摘要:

The merging of immiscible drops differs significantly from the merging of miscible drops due to the formation of a liquid-liquid interface between drops. The immiscibility requires the formation of a four-phase contact point, where the drops, the gas and the substrate meet. We show that this point has its own unique dynamics, never studied beforehand. For very different scenarios, the propagation distance of this point follows scales with time like t^{0.5}. A model balancing the driving and dissipative forces agrees with our experiments.

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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