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arXiv 1403.4499physics.flu-dyncond-mat.soft
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毛细管折叠的几何形状和润湿

The geometry and wetting of capillary folding

Jean-Philippe Péraud, Eric Lauga

摘要:

毛细管力涉及各种自然现象,从液滴破裂到云的物理学。如果涉及的长度尺度足够小,则来自表面张力的力也可以在工业应用中被利用。最近的实验研究表明,如何利用毛细作用折叠平面结构成三维配置,通过选择性地熔化聚合物铰链连接,否则刚性的形状。在本文中,我们使用理论计算来量化的几何形状和流体润湿的最终折叠状态的作用。考虑在二维和三维折叠,研究可能的接触角滞后的亲水性和疏水性的情况下,并解决的形状被折叠成连续无限的,有限的,弯曲的,扭结的,弹性的,我们能够推导出一个概述的几何参数空间可用于毛细管折叠。

英文摘要:

Capillary forces are involved in a variety of natural phenomena, ranging from droplet breakup to the physics of clouds. The forces from surface tension can also be exploited in industrial application provided the length scales involved are small enough. Recent experimental investigations showed how to take advantage of capillarity to fold planar structures into three-dimensional configurations by selectively melting polymeric hinges joining otherwise rigid shapes. In this paper we use theoretical calculations to quantify the role of geometry and fluid wetting on the final folded state. Considering folding in two and three dimensions, studying both hydrophilic and hydrophobic situations with possible contact angle hysteresis, and addressing the shapes to be folded to be successively infinite, finite, curved, kinked, elastic, we are able to derive an overview of the geometrical parameter space available for capillary folding.

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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