标题： 挥发性流体的移动接触线 显示英文标题

标题： Moving contact line of a volatile fluid

摘要： 接近移动接触线的界面流动本质上是多尺度的。 界面形状和介观及宏观尺度上的流动继承了明显的界面斜率和正则化长度，这两者均以Voinov命名，来源于微观尺度上起作用的动力学过程。 在此，我们解决了挥发性流体与其蒸气处于平衡状态时的内部问题。 蒸发/冷凝通量由饱和温度与界面曲率的依赖关系控制——即所谓的开尔文效应。 我们推导了Voinov角和Voinov长度随基底温度变化的依赖关系。 最后讨论了这些预测对实验问题的相关性。 显示英文摘要

摘要： Interfacial flows close to a moving contact line are inherently multi-scale. The shape of the interface and the flow at meso- and macroscopic scales inherit an apparent interface slope and a regularization length, both called after Voinov, from the dynamical processes at work at the microscopic level. Here, we solve this inner problem in the case of a volatile fluid at equilibrium with its vapor. The evaporative/condensation flux is then controlled by the dependence of the saturation temperature on interface curvature -- the so-called Kelvin effect. We derive the dependencies of the Voinov angle and of the Voinov length as functions of the substrate temperature. The relevance of the predictions for experimental problems is finally discussed.