论文标题

复杂流动界面的近接触相互作用的中尺度建模

Mesoscale modeling of near-contact interactions for complex flowing interfaces

论文作者

Montessori, Andrea, Lauricella, Marco, Tirelli, Nicola, Succi, Sauro

论文摘要

我们提出了一个用于多组分流的中尺度动力学模型,并以短距离强迫项增强,旨在描述表面张力和在流体界面水平上运行的近接触相互作用的综合效果。 i)表明了这种中尺度方法的准确捕获弹跳碰撞液滴的复杂动力学,以确定主要管理参数的不同值,ii)定量预测微通道中密集乳液的有效粘度和iii)模拟了微荧光聚焦焦点中所谓的柔软流动晶体的形成。

We present a mesoscale kinetic model for multicomponent flows, augmented with a short range forcing term, aimed at describing the combined effect of surface tension and near-contact interactions operating at the fluid interface level. Such mesoscale approach is shown to i) accurately capture the complex dynamics of bouncing colliding droplets for different values of the main governing parameters, ii) predict quantitatively the effective viscosity of dense emulsions in micro-channels and iii) simulate the formation of the so-called soft flowing crystals in microfluidic focusers.

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