论文标题
电网诱导的液滴从弯曲表面脱离的临界条件
Critical condition for electrowetting-induced detachment of a droplet from a curved surface
论文作者
论文摘要
基于能量保守，我们从理论上得出了从疏水弯曲表面进行电解诱导的液滴脱离的临界条件。相图是根据液滴体积，粘度，ohnesorge数，接触线，表面曲率，表面润湿性和电解器数的摩擦系数构建的。推导的临界条件对脱离何时发生，提供了一个一般和定量的预测，标准使我们能够获得更多有关如何准确操纵弯曲表面上的水滴脱离的电网诱导的脱离的见解。本文获得的结果还表明，可以通过增加液滴体积和表面曲率来扩大相图的可分离状态，并降低液体粘度，摩擦系数，Ohnesorge数量，Ohnesorge数量和底物的润湿性。
Based on energy conservation, we derive a critical condition theoretically for electrowettinginduced droplet detachment from a hydrophobic curved surface. Phase diagrams are constructed in terms of droplet volume, viscosity, Ohnesorge number, friction coefficient at contact line, surface curvature, surface wettability and electrowetting number. The deduced critical condition offers a general and quantitative prediction on when the detachment occurs, a criterion enabling us to gain more insights into how to accurately manipulate the electrowetting-induced detachment of an aqueous droplet on a curved surface. The results obtained in this paper also imply that the detachable regimes of the phase diagrams can be enlarged through increasing droplet volume and surface curvature, and reducing liquid viscosity, friction coefficient, Ohnesorge number and wettability of substrates.
