标题： 非球形附着液滴向平衡状态的松弛 显示英文标题

标题： Relaxation of nonspherical sessile drops towards equilibrium

摘要： 我们提出一项理论研究，与最近关于附着液滴合并的实验相关。 该研究涉及在表面张力作用下，球形液滴在平坦表面上向平衡状态弛豫的动力学过程。 对于在部分润湿条件下非球形的液滴，接触线处的动态接触角沿接触线变化。 我们提出一种新的非局部方法来描述润湿动力学，其中接触线速度取决于整个液滴的几何形状。 我们将结果与传统方法的结果进行比较，在传统方法中，接触线速度仅依赖于动态接触角的局部值。 还讨论了表面缺陷对接触线钉扎对液滴动力学的影响。 显示英文摘要

摘要： We present a theoretical study related to a recent experiment on the coalescence of sessile drops. The study deals with the kinetics of relaxation towards equilibrium, under the action of surface tension, of a spheroidal drop on a flat surface. For such a nonspherical drop under partial wetting conditions, the dynamic contact angle varies along the contact line. We propose a new nonlocal approach to the wetting dynamics, where the contact line velocity depends on the geometry of the whole drop. We compare our results to those of the conventional approach in which the contact line velocity depends only on the local value of the dynamic contact angle. The influence on drop dynamics of the pinning of the contact line by surface defects is also discussed.