The present work numerically demonstrates a simple but effective method of controlling the droplet motion direction by utilizing the wettability properties of the substrate and a stripe on the substrate. Three motion manners, i.e. glide-only, glide-cross, and cross-only motions, are identified and analyzed. The simulation results show that droplets with different sizes prefer different motion manners, and the stripe width can influence the motion manner further. This study could provide a new idea for the design of relevant applications, such as anti-icing treatment of road and building surfaces, by employing the wettability property of the surfaces.

中文翻译：

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通过使用化学条纹图案的表面控制液滴的运动

本发明在数值上证明了通过利用衬底和衬底上的条的润湿性来控制液滴运动方向的简单而有效的方法。识别并分析了三种运动方式，即仅滑行运动，滑行交叉运动和仅十字运动。仿真结果表明，不同大小的液滴更喜欢不同的运动方式，条带宽度会进一步影响运动方式。这项研究可以通过利用表面的可湿性为相关应用的设计提供新思路，例如道路和建筑物表面的防冰处理。