摘要翻译:
在某些情况下,水滴可以完全润湿微结构的超疏水表面。通过超高速成像分析了这一快速过程的{\IT动力学}。根据微结构的尺度,润湿前沿平滑地循环传播,或者--更有趣的是--以{it逐步}的方式传播,导致越来越大的{it方形}润湿区域:进入垂直于前沿传播方向的新行需要毫秒,而一旦发生这种情况,行本身就需要微秒({\it“拉链”})
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英文标题:
《Spontaneous Breakdown of Superhydrophobicity》
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作者:
Mauro Sbragaglia, Alisia M. Peters, Christophe Pirat, Bram M. Borkent,
Rob G. H. Lammertink, Matthias Wessling, and Detlef Lohse
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Fluid Dynamics 流体动力学
分类描述:Turbulence, instabilities, incompressible/compressible flows, reacting flows. Aero/hydrodynamics, fluid-structure interactions, acoustics. Biological fluid dynamics, micro/nanofluidics, interfacial phenomena. Complex fluids, suspensions and granular flows, porous media flows. Geophysical flows, thermoconvective and stratified flows. Mathematical and computational methods for fluid dynamics, fluid flow models, experimental techniques.
湍流,不稳定性,不可压缩/可压缩流,反应流。气动/流体力学,流体-结构相互作用,声学。生物流体力学,微/纳米流体力学,界面现象。复杂流体,悬浮液和颗粒流,多孔介质流。地球物理流,热对流和层流。流体动力学的数学和计算方法,流体流动模型,实验技术。
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一级分类:Physics 物理学
二级分类:Soft Condensed Matter 软凝聚态物质
分类描述:Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜,聚合物,液晶,玻璃,胶体,颗粒物质
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一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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一级分类:Physics 物理学
二级分类:Pattern Formation and Solitons 图形形成与孤子
分类描述:Pattern formation, coherent structures, solitons
图案形成,相干结构,孤子
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英文摘要:
In some cases water droplets can completely wet micro-structured superhydrophobic surfaces. The {\it dynamics} of this rapid process is analyzed by ultra-high-speed imaging. Depending on the scales of the micro-structure, the wetting fronts propagate smoothly and circularly or -- more interestingly -- in a {\it stepwise} manner, leading to a growing {\it square-shaped} wetted area: entering a new row perpendicular to the direction of front propagation takes milliseconds, whereas once this has happened, the row itself fills in microseconds ({\it ``zipping''})
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PDF链接:
https://arxiv.org/pdf/705.421