The physics of moving wetting lines
The physics of moving wetting lines
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DOI：
10.1016/j.jcis.2006.03.051
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发表时间：
2006-07-01
影响因子：
9.9
通讯作者：
Blake, Terence D.
中科院分区：
文献类型：
--
作者：
Blake, Terence D.
科学家们倾向于按照他们最熟悉的模型来思考。最早对移动的润湿线及其相关的动态接触角的描述是关于液-汽界面的位移平衡(化学家)、摩擦(物理学家)和粘性弯曲(工程师和数学家)，这并不是偶然的。这些方法中的每一种都从一开始就取得了进展，但是，尽管每一种方法都反映了潜在物理机制的不同方面，每一种方法都至少提供了一条半经验的途径来描述它，但没有一种方法是完整的。到目前为止，还没有完全一致的处理方法符合所有这三种观点，并为预测提供了有效的基础--尽管至少出现了一种新的流体力学方法，在一定程度上朝着这个方向发展。这份文件试图提供一份现状报告：简要回顾目前的每一种方法。以说明实验和模拟揭示的它们的成功和局限性，并提出未来可能研究润湿动力学的不同方面的方法。(C)2006 Elsevier Inc.保留所有权利。
Scientists tend to think in terms of their most familiar models. It is not accidental that the earliest descriptions of the moving wetting line and its associated dynamic contact angle were in terms of displaced equilibria (chemists), friction (physicists) and viscous bending of the liquid-vapour interface (engineers and mathematicians). Each of these approaches has progressed since its inception, but, while each reflects a different facet of the underlying physical mechanism, and each offers at least a semi-empirical route to its description, none is complete. There is, as yet, no fully agreed treatment that is consistent with all three viewpoints and provides an effective basis for prediction-though at least one new hydrodynamic approach has emerged that goes some way in this direction. This paper seeks to offer a status report: to briefly review each of the current approaches. to illustrate their successes and limitations as revealed by experiment and simulation, and to suggest ways in which the different aspects of wetting dynamics might be investigated in the future. (c) 2006 Elsevier Inc. All rights reserved.