由表面冻结或熔化驱动的液滴运动：一种介观流体动力学方法
Droplet motion driven by surface freezing or melting: A mesoscopic hydrodynamic approach
摘要：
流体液滴可以通过改变基底的润湿性质而表现出自推进运动。我们提出了一个新的模型，液滴传播的梯田景观形成的有序层作为一个结果，表面冻结驱动的接触角依赖于梯田厚度。同时融化或冻结的阶地边缘的结果在一个联合滴阶运动。对该模型进行了数值测试，并与实验观测的长链烷烃系统的表面熔点附近。
英文摘要：
A fluid droplet may exhibit self-propelled motion by modifying the wetting properties of the substrate. We propose a novel model for droplet propagation upon a terraced landscape of ordered layers formed as a result of surface freezing driven by the contact angle dependence on the terrace thickness. Simultaneous melting or freezing of the terrace edge results in a joint droplet-terrace motion. The model is tested numerically and compared to experimental observations on long-chain alkane system in the vicinity of the surface melting point.
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