The results of droplet formation modeling in a microfluidic device based on the force balance method are described in the paper. The Navier-Stokes and continuity equations in an axisymmetric formulation were used to describe the hydrodynamic situation in a liquid film between a growing droplet and a channel wall. Shear stresses, pressure gradient along the droplet, as well as interfacial tension forces were included in the force balance. The obtained results allow to analyze the influence of phase flow rates and the properties of both phases on the flow regimes boundaries. It is shown that the continuous phase flow rate significantly determines the hydrodynamic situation both in the formed droplet of the dispersed phase and in the continuous phase film. On the other hand, the effect of the dispersed phase viscosity on the position of the flow regimes boundaries is much stronger than the viscosity of the continuous phase.

本文描述了基于力平衡法的微流控装置中液滴形成建模的结果。轴对称公式中的Navier-Stokes和连续性方程用于描述生长的液滴和通道壁之间的液膜中的流体动力学情况。剪切应力，沿液滴的压力梯度以及界面张力均包含在力平衡中。获得的结果允许分析相流速和两个相的性质对流态边界的影响。结果表明，连续相的流速显着地决定了分散相形成的液滴和连续相膜中的流体力学状况。另一方面，