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arXiv 1803.04040cond-mat.soft
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液体注入表面上的液滴动力学:润湿脊的作用

Drop dynamics on Liquid Infused Surfaces: The Role of the Wetting Ridge

Muhammad Subkhi Sadullah, Ciro Semprebon, Halim Kusumaatmaja

摘要:

我们采用自由能格子玻尔兹曼方法研究了由体积力驱动的液滴穿过规则纹理基底并注入润滑液组成的三元流体系统的动力学。我们专注于部分润湿润滑剂的情况下,并观察到丰富的接触线钉扎和粘性耗散之间的相互作用,在润滑剂脊,这成为占主导地位的大和小的表观角度分别。我们的数值研究进一步表明,在润滑剂脊的粘性耗散的相对重要性取决于滴润滑剂的粘度比,以及润湿脊的形状。

英文摘要:

We employ a free energy lattice Boltzmann method to study the dynamics of a ternary fluid system consisting of a liquid drop driven by a body force across a regularly textured substrate, infused by a lubricating liquid. We focus on the case of partial wetting lubricants and observe a rich interplay between contact line pinning and viscous dissipation at the lubricant ridge, which become dominant at large and small apparent angles respectively. Our numerical investigations further demonstrate that the relative importance of viscous dissipation at the lubricant ridge depends on the drop to lubricant viscosity ratio, as well as on the shape of the wetting ridge.

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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