论文标题
曲率动力学和对胶体流体流体界面的远程影响
Curvature dynamics and long-range effects on fluid-fluid interfaces with colloids
论文作者
论文摘要
我们研究了分离二元流体的动力学，其中包含固定在流体流体界面上的胶体哑铃。广泛的晶格玻尔兹曼（Boltzmann）脱落边界方法模拟表明，即使变形动力学几乎没有变化，软哑铃的存在也会显着影响相分离流体之间界面的曲率动力学。此外，我们的结果表明，曲率动力学表现出明显的非本地效应，这可能是为新的软中尺度材料设计而被利用的。我们指出，对曲率的统计动力学的检查可以揭示出对二元流体构型局部不均匀性的新见解，这是体积分数和哑铃长宽比的函数。
We investigate the dynamics of a phase-separating binary fluid, containing colloidal dumbbells anchored to the fluid-fluid interface. Extensive Lattice Boltzmann-Immersed Boundary method simulations reveal that the presence of soft dumbbells can significantly affect the curvature dynamics of the interface between phase-separating fluids, even though the coarsening dynamics is left nearly unchanged. In addition, our results show that the curvature dynamics exhibits distinct non-local effects, which might be exploited for the design of new soft mesoscale materials. We point out that the inspection of the statistical dynamics of the curvature can disclose new insights into local inhomogeneities of the binary fluid configuration, as a function of the volume fraction and aspect ratio of the dumbbells.
