Lattice Boltzmann simulation of solid-liquid multiphase flow in microscale complicated geometries

发展了一种基于格子Boltzmann方法的固液两相流数值计算方法，并将其应用于微尺度复杂几何形状的变形体运动。通过扩展我们以前的工作，我们研究了非球形物体的行为，例如，一种双凹面的物体，如粘滞液体中的红血球。此外，我们还模拟了粘弹性体在具有收缩的复杂通道中的运动。结果表明，该方法是一种有效的数值计算方法，有可能成为一种商业化的数值计算方法。

A new numerical method for solid-liquid two-phase flow based on the lattice Boltzmann method is developed, and applied to the motion of a deformable body in microscale complicated geometries. By extending our previous work, we investigate the behavior of a non-spherical body, e.g., a biconcave body such as a red blood cell in viscous fluid. Also, we simulate the motion of a viscoelastic body in complex channels with a constriction. From these results, it is found that the validity of the present method is demonstrated, and it can be a promising numerical method as commercial software in the future.