Moving contact lines in the Cahn-Hilliard theory
Moving contact lines in the Cahn-Hilliard theory
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DOI：
10.1016/0020-7225(95)00141-7
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发表时间：
1996-07
影响因子：
6.6
通讯作者：
P. Seppecher
中科院分区：
文献类型：
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作者：
P. Seppecher
我们建立了等温粘性卡恩-希利亚德流体的运动方程，并根据该理论研究了具有移动接触线的流体动力学。经典毛细管模型中出现的力奇点不再存在。这种去除是由于界面上的质量传递与界面的有限厚度相结合。对接触线附近流动的数值模拟显示了静态接触角、动态角之间的联系，并指出了速度的影响。
We establish the equations of motion of an isothermal viscous Cahn-Hilliard fluid and we investigate the dynamics of fluids having moving contact lines under this theory. The force singularity arising in the classical model of capillarity is no longer present. This removal is due to a mass transfer across the interface combined with a finite thickness of the interface. A numerical simulation of the flow in the immediate vicinity of the contact line shows the connection between the static contact angle, the dynamic angle and points out the influence of the velocity.