MOLECULAR-DYNAMICS OF POISEUILLE FLOW AND MOVING CONTACT LINES
MOLECULAR-DYNAMICS OF POISEUILLE FLOW AND MOVING CONTACT LINES
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DOI：
10.1103/physrevlett.60.1282
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发表时间：
1988-03-28
影响因子：
8.6
通讯作者：
WILLEMSEN, JF
中科院分区：
文献类型：
--
作者：
KOPLIK, J;BANAVAR, JR;WILLEMSEN, JF
我们报告的分子动力学模拟低雷诺数流动的Lennard-Jones流体通过一个通道。将压力梯度应用于单一流体产生具有无滑移边界条件和泰勒-阿里斯流体动力学弥散的Poiffille流。对于一个不混溶的双流体系统，我们发现一个（可预测的）静态接触角，当加速，速度依赖的前进和后退接触角。得到了近似的局部速度场，其中，无滑移条件在接触线附近出现破裂。
We report on molecular-dynamics simulations of the low–Reynolds-number flow of Lennard-Jones fluids through a channel. Application of a pressure gradient to a single fluid produces Poiseuille flow with a no-slip boundary condition and Taylor-Aris hydrodynamic dispersion. For an immiscible two-fluid system we find a (predictable) static contact angle and, when accelerated, velocity-dependent advancing and receding contact angles. The approximate local velocity field is obtained, in which the no-slip condition appears to break down near the contact line.