Towards understanding elastocapillarity: comparing wetting of soft and rigid plates

Towards understanding elastocapillarity: comparing wetting of soft and rigid plates
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理解弹性毛细管现象:比较软板和硬板的润湿性

DOI:
10.1088/0953-8984/26/15/155105
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发表时间:
2014-03
影响因子:
2.7
通讯作者:
Feng, Xi-Qiao
Feng, Xi-Qiao
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Ji, Xiang-Ying;Feng, Xi-Qiao

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弹性毛细作用对漂浮在水面上的软物体的浮力和拒水性起着重要作用。本文分析了弹性圆板在液体表面上的润湿行为。本文研究了轴对称无限大液体微扰的几何和稳定性,揭示了它们与二维平面微扰的本质区别。通过比较刚性圆板和弹性圆板在压力作用下的润湿过程,我们表明,柔性有利于板所能达到的最大深度和浮力。研究结果不仅有助于了解某些水生生物的生活行为,而且有助于仿生软体微机器人的设计。
Elastocapillarity plays a significant role in the buoyancy and water repellency of soft objects floating on water. In this paper, we analyze the wetting behavior of an elastic and circular plate pressing a liquid surface. The geometry and stability of axisymmetric infinite liquid menisci are investigated, and their qualitative difference from two-dimensional planar menisci is revealed. By comparing the wetting processes of rigid and elastic circular plates under pressing, we show that flexibility benefits both the maximal depth and buoyancy a plate can reach. The results are helpful not only for understanding the living behavior of some aquatic creatures but also for the design of biomimetic soft microrobotics.
DOI: 10.1021/la800245k
发表时间: 2008-07
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