Liquid Surfaces with Chaotic Capillary Waves Exhibit an Effective Surface Tension,Physical Review Letters

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Liquid Surfaces with Chaotic Capillary Waves Exhibit an Effective Surface Tension
Physical Review Letters ( IF 8.1 ) Pub Date : 2024-07-15 , DOI: 10.1103/physrevlett.133.034001
Steffen Bisswanger ₁ , Henning Bonart ₁ , Pyi Thein Khaing ₁ , Steffen Hardt ₁

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The influence of chaotic capillary waves on the time-averaged shape of a liquid volume is studied experimentally and theoretically. In that context, a liquid film containing a stable hole is subjected to Faraday waves. The waves induce a shrinkage of the hole compared to the static film, which can be described using the Young-Laplace equation by incorporating an effective capillary length. In the regime of chaotic Faraday waves, the presented theoretical model explains the hole shrinkage quantitatively, linking the effective capillary length to the wave energy. The effect of chaotic Faraday waves can be interpreted as a dynamic surface force that acts against surface tension.

中文翻译：

具有混沌毛细波的液体表面表现出有效的表面张力

通过实验和理论研究了混沌毛细波对液体体积的时间平均形状的影响。在这种情况下，含有稳定孔的液膜会受到法拉第波的影响。与静态薄膜相比，波引起孔的收缩，这可以通过结合有效毛细管长度使用杨-拉普拉斯方程来描述。在混沌法拉第波的情况下，所提出的理论模型定量地解释了孔收缩，将有效毛细管长度与波能联系起来。混沌法拉第波的效应可以解释为对抗表面张力的动态表面力。

更新日期：2024-07-16

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