Abstract.

We have studied the dewetting dynamics of partially wetting liquid films confined between a soft elastic hemisphere and an elastomer layer by means of systematic experiments. We focused on the experimentally most relevant case of non-axisymmetric dewetting, which initiated at the locations of minimum film thickness near the perimeter of the contact area. We found the contact line speed to be highly anisotropic in this case. It is significantly faster in the azimuthal direction along the perimeter of the contact spot than in the radially inwards direction. We developed a three-dimensional, fully coupled numerical model that reproduces many features observed in the experiments.

Graphical abstract

中文翻译：

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非轴对称弹性流体动力固液固反润湿：实验和数值模拟。

摘要。

我们已经通过系统实验研究了局限在软弹性半球和弹性体层之间的部分润湿液膜的去湿动力学。我们专注于非轴对称去湿的实验上最相关的情况，这种情况始于接触区域周边附近最小膜厚的位置。我们发现在这种情况下，接触线速度是高度各向异性的。与沿径向向内的方向相比，沿接触点周边的方位角方向的速度明显更快。我们开发了三维完全耦合的三维模型，该模型重现了实验中观察到的许多特征。

图形概要