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Spontaneous Elastocapillary Winding of Thin Elastic Fibers in Contact with Bubbles
Physical Review Letters ( IF 8.6 ) Pub Date : 2021-11-18 , DOI: 10.1103/physrevlett.127.218001
Adam Fortais 1 , Kathleen Charlesworth 1 , Rafael D Schulman 1 , Kari Dalnoki-Veress 1, 2
Affiliation  

We study the elastocapillary interaction between flexible microfibers in contact with bubbles trapped at the surface of a liquid bath. Microfibers placed on top of bubbles are found to migrate to and wrap into a coil around the perimeter of the bubble for certain bubble-fiber size combinations. The wrapping process is spontaneous: the coil spins atop the bubble, thereby drawing in excess fiber floating on the bath. A two-dimensional microfiber coil emerges which increases the lifetime of the bubbles. A simple model incorporating surface and bending energies captures the spontaneous winding process.

中文翻译:

与气泡接触的细弹性纤维的自发弹性毛细管缠绕

我们研究了与滞留在液体浴表面的气泡接触的柔性微纤维之间的弹性毛细管相互作用。发现放置在气泡顶部的超细纤维会迁移并围绕气泡周边形成线圈,以实现某些气泡-纤维尺寸组合。缠绕过程是自发的:线圈在气泡顶部旋转,从而吸入漂浮在浴槽上的多余纤维。一个二维微纤维线圈出现,增加了气泡的寿命。一个包含表面能和弯曲能的简单模型捕捉了自发缠绕过程。
更新日期:2021-11-18
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