Open data for "Droplet Bouncing and Jump-off Forces on Ridged Substrates"

This is the data for manuscript "Droplet Bouncing and Jump-off Forces on Ridged Substrates". The data is self-explaining. Paper abstract is shown below.<b>Abstract</b>It seems to be common sense that decreasing the pore size of a mesh surface thereby enhancing the capillary pressure resisting the liquid penetration, is the only way to suppress its penetration. Here, we demonstrate that a macro-ridge decorated on a mesh increases its droplet dynamic pressure threshold for liquid penetration by up to 130%. This phenomenon is attributed to the symmetry and synchronicity break of the flow-focusing process on the retraction stage of droplets. Based on multiple flow-focusing events of split liquid films at different sites that take place synchronically and independently, analyses are conducted to capture the timescale, magnitude, and resultant pressure of the droplet jump-off force imparted onto ridged substrates, despite the variations in droplet impact speed, liquid viscosity, and ridge morphology.

本数据集对应稿件《脊状基底上液滴弹跳与脱离力》，数据内容清晰直观。论文摘要如下：长久以来，学界普遍认为，减小网格表面孔径以提升抵抗液体侵入的毛细管压力，是抑制液体侵入的唯一途径。本研究表明，网格表面修饰的宏观脊状结构，可将液体侵入对应的液滴动态压力阈值提升最高达130%。该现象源于液滴回缩阶段流聚焦（flow-focusing）过程的对称性与同步性破缺。尽管液滴撞击速度、液体粘度以及脊状结构形貌存在差异，本研究基于不同位置同步且独立发生的分裂液膜多流聚焦事件，开展分析以获取施加于脊状基底的液滴脱离力的时间尺度、幅值与合压力。