Blake Terence D
8 Hazely, Tring, Herts. HP23 5JH, UK.
J Colloid Interface Sci. 2006 Jul 1;299(1):1-13. doi: 10.1016/j.jcis.2006.03.051. Epub 2006 Mar 27.
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.
科学家们倾向于依据他们最为熟悉的模型进行思考。最早关于移动润湿线及其相关动态接触角的描述是从化学平衡的位移（化学家）、摩擦力（物理学家）以及液-气界面的粘性弯曲（工程师和数学家）等角度进行的，这并非偶然。自每种方法诞生以来都有所发展，然而，尽管每种方法都反映了潜在物理机制的不同方面，并且每种方法都至少提供了一种半经验性的描述途径，但没有一种是完整的。目前还没有一种能与所有三种观点都一致且为预测提供有效基础的完全公认的处理方法——尽管至少已经出现了一种新的流体动力学方法，在这个方向上取得了一定进展。本文旨在提供一份现状报告：简要回顾当前的每种方法，说明实验和模拟所揭示的它们的成功之处和局限性，并提出未来研究润湿动力学不同方面的可能方法。
