Abstract In this study, we numerically determined the performance of a microscale separator comprising a lateral and a main channel to separate a two-phase flow. It was aimed to conduct continuous phase through the lateral channel and dispersed phase through the main channel. The continuous and dispersed phases were modeled as incompressible Newtonian fluids with the corresponding interface tracked by the phase-field model. The dynamics, including pressure fluctuations in the separator, were further examined. It was mechanistically demonstrated how the geometry of the separator modulates the phase separation. Further examined were the influences of various geometrical parameters on the performance of the separator. It was observed that the main- and lateral-channels geometry considerably modulates the performance. In addition, the response surface methodology (RSM) was used to model and optimize the performance. At optimum values for the geometrical parameters, the numerically determined performance was highly comparable to that predicted by the RSM.

中文翻译：

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使用几何控制不混溶液体的微尺度分离：计算流体动力学研究

摘要 在这项研究中，我们通过数值确定了一个微型分离器的性能，该分离器包括一个横向和一个主通道，用于分离两相流。其目的是通过侧通道传导连续相，通过主通道传导分散相。连续相和分散相被模拟为不可压缩的牛顿流体，相应的界面由相场模型跟踪。进一步检查了动力学，包括分离器中的压力波动。从机械上证明了分离器的几何形状如何调节相分离。进一步研究了各种几何参数对隔板性能的影响。据观察，主通道和横向通道的几何形状极大地调节了性能。此外，响应面方法 (RSM) 用于建模和优化性能。在几何参数的最佳值下，数值确定的性能与 RSM 预测的性能高度可比。