动态滑动条件、范德华力和动态接触角
Kinetic Slip Condition, van der Waals Forces, and Dynamic Contact Angle
摘要：
考虑到分子间力，并在分子截止距离处引入动力学滑移条件，计算了铺展润湿膜的轮廓。这消除了应力奇异性，从而明确定义了“真实”和“可见”接触角。截止距离处的“真实”接触角取决于滑移长度以及边缘传播速度，但不取决于重力或渐近倾角。然而，这些宏观因素影响在实际膜轮廓偏离中间渐近曲线的间隔中观察到的“可见”接触角。
英文摘要：
The profiles of a spreading wetting film are computed taking into account intermolecular forces and introducing a kinetic slip condition at a molecular cut-off distance. This eliminates the stress singularity, so that both "true" and "visible" contact angles are defined unequivocally. The "true" contact angle at the cut-off distance depends on the slip length as well as on the edge propagation speed, but not on gravity or asymptotic inclination angle. These macroscopic factors influence, however, the "visible" contact angle observed in the interval where the actual film profile departs from the intermediate asymptotic curve.
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